My collecting has largely dwindled to just the MOTUC and DCUC lines, but I will be all over that 60's Batman like a cheap suit.
I was hoping to see another wave of DCD Arkham City figures - they did show a giant Grundy figure coming, but I think I will probably skip that one. I'm just hoping to see one more wave that's got Two-Face, Hugo and Calendar Man at some point.
Other than that, I think the only other 'must haves' for me are Trailbreaker (Trailcutter) and Blitzwing from the TF Classics line...maybe Springer if I see him. All three look great.