Ultimate Ben Reilly was Conner's lab assitant, and at the end of the arc he made off with some of Parker's blood/DNA, perhaps he tries to experiment with it and becomes another spider-man.
I'm somewhat wary of Secret War, it's a cool premise and all, but nothing has happened, other than Cage being injured, which we know he's going to be all right because he's becoming an Avenger soon. At the moment I'm somewhat gun shy about Bendis, usually he's good, even great, but his take on Avengers sucks and he's flooding the market with himself, I can only take so much.
Ultimate Nightmare is quite boring. Usually Ellis does top notch stuff, if the last 2 issues in the series really deliver, then he might redeem himself. However 3 issues into a 5 issue mini series and nothing has happened, I know there's the big deal with decompressed story's, and it's supposed to be treated like a film, with the build up and everything, but even 3/5ths through a movie something exciting has happened by then.