Thanks for separating out the story stuff man. Appreciate it. So he doesn't say who the secret characters are save for Reptile. Interesting. I'd love for Reptile to be in and I don't hate that DLC list. Reiko is a weird choice but I have faith they could do some cool things with him.
About Reptile i dont know for sure but him saying he can be seen in the Krypt sounds like he is just a NPC at this point imo.