I would like to retrospectively include the Classicsverse Seekers on this list. Although all of them have now been released as regular store releases, we spent a good five years waiting for it! For half a decade I kept on thinking that releasing all the Seekers was a no-brainer. It eventually was, but talk about a looong wait between figures!Quite a few of us ended up forking out higher prices for the BotCon and Gentei exclusive Seekers because it seemed unlikely at the time that Hasbro would release them in stores.
I can't believe that Hasbro released Acid Storm before releasing Thundercracker, Thrust and Dirge!
I totally agree with Tober's suggestion of releasing the Coneheads as MPs.
IMO reissuing the Dinobots isn't an "obvious" choice, as TakaraTOMY have reportedly lost the moulds and have stated that even rebuilding part of a mould is very expensive and not worth the expenditure. The only time it's been done was for the reissue of the original G1 Convoy mould, and even then it was really cast from the 1993 G2 mould with reconstructed arms. And of course, that toy has become the single most reissued toy in Transformers history. I'm not sure if the Dinobots have as much re-re-re-re-re-reissue potential, and rebuilding the entire moulds would be more costly than just rebuilding arms. Look at how expensive recent BotCon and TFCC exclusives have become to, I assume, offset the cost of some new heads. Keep in mind that Takara(TOMY) produces reissues in limited numbers too (as they are explicitly targeting the collectors niche market).
They have done car Arcees (Binaltech, Animated), but we still haven't had a G1-based Carcee.C'mooon Generations Arcee!! Generations Arcee could very easily be repainted as Paradron Medic.
^I like this idea. They could also make more money back from the Insecticons by repainting them as Salvo, Shothole and Zaptrap; again, each with repainted Reflectors. One of them should be a toy-accurate repaint of Viewfinder (i.e. dark blue instead of purple). Repaint another Reflector entirely in silver chrome (so it looks more G1-like in gun mode), and another one where the camera has more G1-accurate colours (e.g. black and silver barrel etc.).
P.S.:
More obscure character repaints; may be released as limited exclusives or store releases (e.g. MP Acid Storm & Sunstorm, MP Exhaust, Generations Crosscut etc.).
e.g.
+ Generations & MP Clamp Down
+ Generations & MP Deep Cover
+ MP Diaclone Ultra Magnus
+ Generations & MP generic purple Seeker
+ Generations/United "Protect" Ironhide
+ Generations (FoC) Battle Gaea
+ Generations/United Load Hauler
+ Generations Minimus Ambus (redeco of Generations Orion Pax)
+ Generations Dominus Ambus (redeco of Voyager Optimus Prime)
+ Generations/United Overcharge (repaint of Generations Blitzwing with fixed shoulder!)
+ Generations/United Eject & Rewind (redecos of United Frumble); potential repaints as Rosanna and Flipsides.
+ Generations/United Detritus w/ Glit and/or Howlback
+ Generations (data discs) & MP Cassettrons: Enemy, Howlback, Glit, Garboil
Also, a lot of Classicsverse figures could be done in their G2 colours as limited exclusives, as we've seen with Ramjet, Breakdown etc. They could even do them in unreleased G2 colours, such as Mirage etc.