I'm with Karajorma on this one, they simply can't "remake" Spaced and expect it to be as successful because Spaced is very cult.
The have it hit the mainstream US audience they're going to have to strip that out of it. Especially if it's without input from Pegg or Wright - it's simply not going to be as good. Perhaps I'm jumping too far on the defensive there as a purist who does love Spaced, but from what I've seen of US remakes - I hold little hope for this.
Now normally I wouldn't care - their remake could bomb and everyone could forget about it. But there's a chance the more ignorant US viewers (and that doesn't mean they're all ignorant, before anyone gets upset) - are going to say "this is ****, I bet the British version is just as ****". It'll drag a perfectly good, successful, cult show through the dirt. Spaced doesn't deserve that.