That's what I was thinking today- the genius about Buffy is that it wasn't a solo supergirl saving the world. It was her & her misfit friends! The Core Four's friendships were such a huge part of the show, & without that, is it really Buffy? I guess they could dig up some other friends for her, but I rather think that they'll ignore that element for a sexier Buffy, great visual effects, and more violence.... Or they'll uber-camp it like the 1st movie.
OK stepping back in the thread uno momento. I don't know if I think this anymore but I used to think....
The friends thing in Buffy is all part of the feminist element. Things that are typically seen as "weak" feminine characteristics are all part of Buffys strength. The fact she is pretty and cares about appearance, she is soft hearted, she is emotionally dependant on people, she will act on her heart rather than her head etc. These are her strengths, they are what make her superior to the slayers who came before. The friendships and chemistry that developed within the show all come from this basic premise that you don't need to be masculine to be strong.
Of course this all got thrown out in series 7 when it turned out that the correct way to act was to ditch your friends, become emotionally detached and only trust the guy who isn't afraid to smack you around. /rant off (Sorry Spuffies please don't yell, I love Spike really).