Would you like for the Spice Girls to reunite and release one more album or single and tour?
Despite all the rumors, I would really want them to release at least one more album but I'll be more realistic and say a new single instead then embark on a small tour. I really want to see them live since when they were together I was too young to see them.
If they did return, would they be successful as they were previously?
No, it will ruin their legacy, because their sound just wouldn't work anymore these days (see: Headlines) and I don't want them to follow trends in order to sound current too. I'm especially not here for it, considering it's rumored Victoria isn't part of it.
No. They should leave it as it is. A new tour, good idea. But no new music. Anything will fail: getting back with old producers would make the music sound dated like the stuff on the Greatest Hits and hooking up with new producers would end up in a shithole of generic mediocrity.