I think Warpath makes a good Sparkcrusher. I wouldn't mind to see Kup Repainted perhaps. As for new Mould Triggerhappy & Misfire would be nice and i'd like to see the brand expanded to Voyager size and for it to include a Triplechanger/Headmaster Snapdragon. I'd quite like to see some more obscure characters get toys to like Rad or Jackpot. Classics Jetfire might repaint nicely into Skyfall too. You can scratch a few wants off the old list due to Botcon2012 with Treadbolt and Friends (shattered or Otherwise).
I shouldn't have to customize a figure to have it look like someone who already had a retail release. If you want to, more power to you. Bear in mind that a Gutcruncher could be customized and would need next to no repainting.
my prediction? well if you live in my area there isnt a single generations on the pegs... at Target or Wal Marts in about 80% of them or more. (yes I goto 14 targets and 20 wal marts!) Wal Marts have already started cancelling generations shipments at about a quarter of them, and Target just clearanced them out at 6.99$... so my prediction is that the line gets cancelled. no real proof or explaination from the major B&Ms as to why they cleared them out, but my guess is that there might be a reason for that. (Prime line? + new movie line(Soundwave and Que etc)) just like to add that I really hope that I am wrong.
Trailbreaker Blitzwing Arcee (G1) FOC Dinobots FOC Combaticons FOC Shockwave Sunstorm (Starscream repaint #1875)