I love Neve Campbell. Such a beautiful woman, and a vey good actress. Wish she could get bigger roles outside of the Scream franchise.
That said, I'm not sold yet. The trailer didn't show anything all that interesting. The hint that Courtney Cox may get whacked doesn't really excite me, nor do the plethora of new characters.
After the last Scream flick, the series lost any kind of credit with me. Loved the first Scream, still do. Scream 2 was an effective follow up, though nothing exemplary. But the second Jay and Silent Bob showed up in Scream 3 -- I'm a Kevin Smith fan, but what the hell were these two fictional characters doing in that movie? It signified a disinterest on the filmmaker's part to maintain their own filmic universe, and cater to pop culture. Killed the flick for me.
So Scream 4 is going to need something really shocking and groundbreaking for me to get interested.
Just my opinion.