Sooo.. I don't know if this will be a total nonsense or.. Whatever, so here it comes.
Let's say Allspark was flying across space ant it landed on lifeless planet creating Cybertron, 13 Primes were created and some of the first transformers.. But instead of staying there, Allspark kinda bounced off into space and landed onto another lifeless planet, but this time insane amounts of energy was released and planet itself became alive and.. Unicron was born. Allspark stayed in Unicron (let's say in "heart" of him) and he used its power to shape himself. Allspark=transformers spark, so Unicron started creating bodies of transformers and giving them life creating thousands of them and using them to conquer planets. Primes and first transformers found out about him as he was headed for Cybertron. Battle started, Primes somehow won using Matrix of Leadership, Unicron escaped, those mindless transformers created by Unicron were freed and started living on Cybertron peacefuly as transformers as we know today and Primes took the Allspark. Let's say Unicron has power to control transformers minds, so he managed to do so with one of the Primes.. Fallen. Using Fallen he wanted to retrieve the Allspark, but as we know he failed. Consuming planets to use them as his secondary fuel he wanted to eridicate all transformers as revenge, so he headed from planet to planet to hunt all remaining, so only ones left were on planet Earth.. 4 escaped and went to Earth to warn everybody. After final battle in Chicago, Prime thought that best way to get rid of Decepticons bodies were to launch the to space (like where they came from or something). As Unicron is headed to earth he finds Megatron's body and repairs him, using some of his remaining power he manages to revive him as Galvatron, taking over his mind he founds out that the Matrix is on earth, so he sends some of his remaining troops to destroy it.. Scourge, Cyclonus, some other folks and Galvatron as their leader heads to earth to destroy Matrix, meanwhile those 4 escaped transformers land on Earth and warns Prime about what's to happen.. Blah blah blah, Galvatron steals the Matrix and Unicron instead of destroying it uses it as his primary power source (Allspark>Matrix of Leadership), he revives thousands of his troops and heads towards Earth, but Prime and Autobots somehow manages to stop Unicron, once again frees those mindless transformers and thinks of using Unicrons energon reactor with Matrix as power source to revive dead Cybertron. Thousands of transfomers, they have their planet back, happy ending ^^ I'm sorry if this is a nonsense, I couldn't sleep so I somehow thought of this and I wanted to share   Tell me what you think   Sorry for bad English :/

 

No, just no. Unicron would never work in the Movie-verse. Way too much CGI for just his robot mode alone. There's just no way they could ever pull off Unicron in the movies, no way they could make a giant planet-former look real and convincing.

Didn't people complain about how poorly Galactus was pulled off in Fantastic Four: Rise of the Silver Surfer? I mean, Galactus is similar to Unicron right, in being a gigantic entity that consumes planets and whatnot? So if people reacted badly to Galactus's portrayal in the live-action Fantastic Four movies, what's to say that the fans will feel the same way about Unicron being featured in the live-action Transformers movies?

So, once more... NO! No Unicron. Keep him out of the movies, keep him in the comics and cartoons, please.

 

The fans reacted badly to that because Galactus was supposed to be a giant humanoid looking thing, instead he was a gas cloud =/

Unicron could work in the movies, however it would take atleast 2-3 films to have all the plot set up to introduce him as the "big bad" and explain his backstory properly.

Basically it would have to work something like this;

TF;
Autobots and Decepticons arrive on Earth. Autobots end up battling Decepticons, Decepticons defeated.

Scorponok is killed by Jazz, Jazz is killed by Blitzwing, Blitzwing is killed by Ironhide. Prowl kills Blackout. Rumble is killed by Ratchet. Megatron is weakened and retreats.

Autobots; Optimus, Ironhide, Ratchet, Bumblebee, Jazz, Prowl, Hotshot, Sunstreaker, Mirage, Bluestreak, Hound
Decepticons; Megatron, Starscream, Soundwave, Frenzy, Ravage, Laserbeak, Rumble, Blitzwing, Blackout, Scorponok

TF-Sequel;
Autobots and Decepticons on Earth. Find out about Primus and the Transformers backstory. Autobots beaten at the end and forced to retreat. Forboding message about Unicron. Decepticons shown to be much more powerful. Starscream and group move to Cybertron. Megatron stays on Earth.

Frenzy & Ravage killed by Hound & Bluestreak. Hound killed by Starscream & his Seekers. Bluestreak killed by Bruticus. Wheeljack killed by Shockwave. Thundercracker killed by Ironhide. Ratchet killed by Soundwave. Sunstreaker killed by Shockwave. Bruticus killed by Optimus & Ironhide. Trailbreaker killed by Soundwave.

Autobots; Optimus, Ironhide, Ratchet, Bumblebee, Hotrod, Sunstreaker, Mirage, Bluestreak, Hound, Sideswipe, Trailbreaker, Wheeljack
Decepticons; Megatron, Starscream, Skywarp, Thundercracker, Soundwave, Shockwave, Frenzy, Ravage, Laserbeak, Bruticus (Formed by six combaticons)

TF-3rd;
Autobots on Earth. Megatrons forces attack - retreat. Autobots take a spacebridge to Cybertron. Megatron near defeat - becomes Galvatron - servant of Unicron to kill Prime, Unicron arrives. Autobots flee. Cybertron destroyed. Unicron follows Transformers to Earth. Autobots close spacebridge, Unicron is being pulled back into imploding spacebridge. Autobots & Starscreams forces attack Unicron. Unicron pulled into spacebridge and explodes while being sucked in. Optimus fights Galvatron on moon. Both are weakened. Galvatron & Prime sucked into spacebridge, Hotrod becomes leader of the Autobots taking the name Rodimus Prime.

Bumblebee is killed by Megatron. Starscream is killed by Optimus. Skywarp is killed by Mirage. Shockwave is killed by Sideswipe. Sideswipe is killed by Soundwave & Laserbeak. Unknown amount of humans and Cybertronians killed by Unicron. Unicron (Presume alive, but lost in dimension?) by spacebridge. Optimus and Galvatron (Presume alive, but lost in another dimension?) by spacebridge.

Autobots; Optimus, Ironhide, Bumblebee, Hotrod/Rodimus, Mirage, Sideswipe, Atleast 50 others (Background charecters)
Other; Unicron, Unknown amount of Cybertronians
Decepticons; Megatron/Galavatron, Starscream, Skywarp, Soundwave, Shockwave, Laserbeak, Atleast 50 (Background charecters)

Remaining surviving robots;
Autobots; Optimus, Hotrod/Rodimus, Ironhide, Mirage
Decepticons; Megatron/Galvatron, Soundwave, Laserbeak

 

People bought that Sam died and went to robot heaven.

Unicron is way less silly than that.

 

primus created 13 tf in my tf book

 

No, in TF4 the villain will be Baycron, half TF half human, and he gets shot in the head by Optimus Prime for his crime of bad storytelling.

 

In yellow and orange with wings and horns? No way!

A completely new and original design? Maybe, if they can still keep it realistic.

 

I bet they do unicorn but he will be like a city instead of a planet

 

Well some of the TFW2005 members had some pretty cool ideas for a movie verse Unicorn

 

Unicron can be made in the movie-verse, but i would say something considerably smaller...maybe he can turn into a sphere-like flying battleship or something like Trypticon...

 

The second image looks interesting and could work. The first one, not so much.

 

Big yellow planet with horns? No! I was thinking more of half a moon sized creature that somehow has insane mass that rips planets apart and then he easily can "eat" them. I know that insane mass is not possible in real world, but.. Turning Allspark from huge cube to small is not possible either