Of what we know so far...
The only one I am really thinking of skipping, if I can find the variant (and it has been corrected) is the new Aquaman. If I find the classic version, then I have no need or want of the current version.
I can do without the variant Penguin (which is supposed to be like the Bane and just contain a robotic Penguin). If I find him first, great. If I find him for my eventual MOC collection, better. But if not, I want have a internet tantrum over it
I will probably get the new Firestorm (I really want the classic). That's the only other character so far that I would consider not getting. I want all of the rest though and definitely every Build-a-Figure. I have no non-animated Grodds and the 4HM Grundy blows away the 1st (and best) DCD Grundy.