Has anyone discovered what happened to Frank West in Case Zero?  I had heard the player would find out something, but I have played it through now 4 times and haven't located anything.  Am I missing something? 

Full game most likely.

Nope. Nothing.

I wonder if you'll be able to wear Frank West's default costume, hidden somewhere in Fortune City. Would make for a kickass easter egg if Frank himself won't be involved in any part of the story.

If Senor War Coverer doesn't appear in the full title I'll be heartbroken.

Well, if the original game's 'A' ending was its canonical ending, then Frank broke the story about the zombies in the first place, which means it's almost a certainty he's going to be involved at least indirectly in the events/mythos behind this game.

Frank West is the final boss of Dead Rising 2.
 
He fights Chuck in the battle for the perfect zombrex that will cure the zombie bite that he and Katey share.

I'm not all that interested in the continuing story of Frank West, but I'm open to it.

" I wonder if you'll be able to wear Frank West's default costume, hidden somewhere in Fortune City. Would make for a kickass easter egg if Frank himself won't be involved in any part of the story. "

The end boss in case zero was Frank....  Joke.

" Frank West is the final boss of Dead Rising 2.  He fights Chuck in the battle for the perfect zombrex that will cure the zombie bite that he and Katey share. "

" @Heartbreak said:

" Frank West is the final boss of Dead Rising 2.  He fights Chuck in the battle for the perfect zombrex that will cure the zombie bite that he and Katey share. "

With a mega buster that shoots drill buckets. "

" Frank West is the final boss of Dead Rising 2.  He fights Chuck in the battle for the perfect zombrex that will cure the zombie bite that he and Katey share. "

I hope he's in there. While I see the problems of keeping the game focused on the one character, I'd like there to be some kind of storyline continuation instead of just jumping from instance to instance and not giving a fuck about the larger narrative until it's too late.