Unfortunately, when we talked to Nicholas last night he said that Fox didn't pick up the show but they're showing the pilot to other networks and hoping that someone else picks it up.
David (Angel) did a live chat a while ago. I read the transcript from it and he actually said that Buffy and Angel are FAR from being done. He said they still have a lot of stuff to work out and he gave the impression that he though a happy ending for those two could be possible. I got the impression that they already knew Sarah would come to Angel one day.
It will be pretty cool to see Spike on Angel though...I wonder if they'll be friend of foe??? Two vampires with a soul in the city of Angels...seems like things could get a little crowded.