No, I don't think it would do well. Maybe from a viewership standpoint it would do well, but the GM for a day idea sucks. I mean, who would want to be a GM in WWE right now anyway? Vickie and Brad don't get any screen time as it is.
Half the roster doesn't get screen time as it is... Why give it to a group of random marks? (Because I'm sure wwe will advertise and have segments for the show on raw and smackdown). And then have to deal with some dweeb playing "GM" for a night. No. It's bad enough having the total diva bullshit take up time on raw. Pass.