Shockwave, Thundercracker, Skywarp, Bludgeon, Bonecrusher, Barricade, and Blackout off the top of my head.

 

KREMZEEK of course!

But seriously (and as many have pointed out) Barricade, Bonecrusher, Lockdown... and an evil ladybot. Someone like Black Arachnia, but minus the spider part.

 

what if Black Arachnia was a Spyder.....be it a doorless/roofless car or one of those newer 3 wheeled motorcycle things....

 

Hrmmmm, actually, the 3 Wheeled Motorcycle idea might just work, although then people would say she's just an "evil" Arcee.

*shrug*

 

Tidal Wave 

 

As many have said before, Blitzwing most definitely is my top choice right now, if he's anything like his Animated counter-part. Swindel, of course. All of the Constructicons, again only if ALL of them have that special Animated Charm to them. Also Shockwave...and probably Blackout, just to see how HUGE they're gonna make him  

 

Skywarp and Thundercraker

Barricade and Sideways

Wasp

Motormaster

Lugnut

Blitzwing

 

-Lockdown (recurring character, brought in to deal with Autobot problem)
-Thundercracker, Skywarp, Ramjet, Thrust, Dirge (yes, the rest of the old Seeker lineup. Just have Thundercracker be like his tech specs/ current IDW persona, Skywarp actually be a little more useful, etc)
-Bludgeon ( have him be a contender to Starscream's ambitions, use, of course, the Furman personality
-Thunderwing (yes, use the zealot, obsessed with gaining the Matrix or some other plot point. The Autobot base location maybe)
-Lugnut (we need the Megatron loyalist)
-Barricade (it would be nice to see the counter intelligence officer)

 

Trypticon, Shockwave, Skywarp, Acid Storm, Depth Charge, Barricade, Blackout. I'll just stop right there.  

 

Depthcharge isn't a Decepticon he was a maximal/autobot.

 

Lockdown, Shockwave, Lugnut, and tributes to the Vehicon generals.

 

I loved TFA's Blitzwing..maybe him..a little more crazy and dangerous as TFP seems to be a darker animated series. Also, I think Scorponok or Cyclonus would make an interesting addition, probably would present competition and/or a challenge for Starscream.

 

Galvatron
Cyclonus
Scourge

 

Thundercracker, Swindle and maybe Astrotrain as some kinda of Megatron loyalist/fanatic like a BW Infernio or an Animated Lugnut, but not as dumb. Anyone who changes into a space shuttle should be huge, towering over all the other bots. Add the personality of a fanatic and he'd be a scary guy.

I'd like to see Lockdown again, but I think I'd like him better in Prime as an Autobot. Or at least start as an Autobot. Leave everything else about his personality the same. The Autobots really seem out gunned in Prime so it's not like they can turn anyone away, but Lockdown's personality and habit of taking "trophies" would cause seem nice dramatic tension.

 

Runamuck and Runabout voiced by Mike Judge would make my day

 

Having not watched the show but enjoying the style, I'm going to make a list entirely based on toys I would like (and hope they are done to my manchild tastes):

Motormaster, Blackout, Strika, Obsidian, Skybyte, Wasp(inator), Shockwave, some Predacons, some Constructicons, Thundercracker, Scourge, Snapdragon, Apeface, Doubledealer, Deathsaurus, Jihaxus, Ratbat...

Oh, and supreme class Trypticon. Over everything else.

 

GD Blizving.

 

Wouldn't mind seeing Blitzwing, Lockdown and Shockwave.

 

Shockwave and Breakdown are all I want to see so far.

 

How about an Animated Jhiaxus or Straxus?

That'd be a first,,,