Beast Wars/Dungeons & Dragons

MTMTE/Red Dwarf

MTMTE/Guardians of the Galaxy

IDW Optimus Prime or Windblade/Mass Effect

TFA/any Gainax/Trigger anime ever

IDW movieverse Sector 7 comic/League of Extraordinary Gentlemen (basically an excuse to have that universe crossover with any old Gothic Horror or pulp sci-fi novel ever)

Transtech/Marvel's Exiles

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I'll probably post more ideas when I think of them

 

How about a new Transformers/old style Ben 10 crossover? It could be pretty neat, especially if it were a whole new continuity where everything could be integrated better; it would be odd to think of Optimus sleeping through the Highbreed invasion.

 

Masters of the Universe

Swat Kats

Road Rovers

 

I think Doctor Who would be interesting.

 

DC & Dragon Ball Z.

You know you want the latter to be full to the brim with TeamFourStar references.

 

Steven Universe! It helps that it's like an antithesis to Transformers.

 

More like a foil.

 

There are actually some parallels between IDW and SU if you really look at them; Both have a character that is or was trying to overthrow a corrupt and morally evil senate (Megatron and Rose), had a change of heart (Megatron becoming an Autobot, Rose learning to love ), and have had to deal with members of their group who had become a problem (Starscream or Shockwave being traitorous, and Bismuth building the Breaking Point). But that's stretching it a little, and the different companies and themes would really mix like oil and water.

 

after just binge watching the first season again, i think a TF/gravity falls crossover would be epic  

 

I think they should remake G1 Sunbow on Adult Swim like Space Ghost. It's got plenty of material.

 

Given the roumormill that Bay is working on a Dora the explorer film...Yeah....

 

G1/Smurfs
Beast Wars/Masters of the Universe
Armada/Pokémon
Armada/Cardcaptor Sakura
Masterforce/Pacific Rim
IDW as one of the doomed universes in the Crisis on Infinite Earths

 

I had to...

 

I'd really dig a crossover between the G1 Transformers 'verse and the Marvel Zoids comics, but given the fact that the rights to the Zoids are in perpetual limbo, I doubt that'll ever happen.

 

Rick and morty for the craziness

Titanfall for some sick titan on cybertronian violence.....nothing will be cooler than a titan being dropped from orbit onto a transformer.

Also in light of the upcoming animated godzilla movie id like to see a small squad of transformers teaming up with humans to take back an abandoned earth overrun with kaiju

 

Voltron x Transformers would be the bommmbbb.

 

Stargate has cool stuff might be a cool crossover.

 

I would loved to seen a Jurassic Park crossover. The dinos being Predacons and the vehicles being a Wrecker unit.

 

A bit of an obscure one but there's a webcomic called Romantically Apocalyptic that might work.

 

I'd like to see a show that's just Transformers based on classic 80's TV vehicles that turn into transformers that fight crime, A-Team style. Kitt, ECTO-1, General Lee, the A-Team Van, Airwolf, the Bluesmobile... the list is endless.