Im starting to believe I dont even think they can do character dlc...
oh they can ...
the whole game is designed like a beta build .. it feels like they can change anything and everything from what they did to the online patch and infinite fixes ...
in fact, now I strongly believe more so now than ever they can easily add whatever the hell they want. so Leon + Ein is more than possible.
especially since they still decided not to announce Alpha-152 in their character list. Because if they did, they would either NOT put the "NEXT?" icon deconfirming any hope for DLC .. or actually PUT IT .. and confirming DLC CHARACTERS . they're playing safe ...
I think it all depends on weather they could cover the price of the "free" Character DLC they indirectly promised with the characters costume packs. (which also explains their price)