I have been trawling the net for interviews and info about Marvel Apes and I found one with Ramon Bach, who is a Marvel Apes artist:
Dave Wallace (DW): So, Marvel Apes - you’re serious? How did this idea come about? If I remember rightly, the title of “Marvel Apes” was suggested by a fan at [...]

Newsarama did an interview Karl Kesel. He didn’t really reveal much about Marvel Apes but it’s worth a read:
Newsarama: “Marvel Apes” is something that’s been mentioned at convention panels for a while. How did you get attached?
Karl Kesel: A call from Steve Wacker was all it took. For some strange reason, he (and, I [...]