They have also talked about One:12 Thundercats and Conan (which Pierre stepped back from in the interview) but we've seen neither hide nor hair of any of that stuff.
Personally, I'd like to see a Carrie Robin, TDKR Joker with extra bat-a-rang in the eye head sculpt, maybe some mutant/sons of Batman and an armless Green Arrow along with Superman. Hell, I'd even buy Bruno and Hobo disguised Batman. I'd buy Alfred, Bruce and Comm. Gordon from TDKR.
I was also thinking about what he said about Diamond as an exclusive partner. Sure Diamond puts up the dough for the exclusives but they also gouge the fan base. Charging 2x what the retail figures cost is just ridiculous and with the recent Punisher they even nixed one of the head sculpts but are still charging the same price. Basically saying it didn't cost out for the extra head sculpt...so why show it???
At $160 bucks for one figure, Diamond can choke on it. The SDCC TDKR Batman vs Mutant Leader w/ diorama retailed for $150 bucks...just to put things in perspective. That was 2 years ago I know but their (Mez +Diamond) price hiking is worst than Hot Toys'.