It's September 2008 & we've all seen Journey's End. Is David Tennant leaving Doctor Who or not?

The 2009 season is supposed to be short I believe. We'll get our one Christmas episode, and 3 (now rumored to be 4) Special episodes. I (regretfully) have to say that I think David Tennant will be leaving after that. He is doing a lot of Theater and has so many Movie role offers now, I doubt that the BBC could afford him for much longer. I know he does love that role, but when it comes down to it.. he's human and money talks. I think that the rumors of already scoping out a new doctor are accurate. Steven Moffat is taking over the show, which is amazing news because he wrote some of the best episodes (Blink, The Girl in the Fireplace, The Empty Child, The Doctor Dances..etc) and he also does "Coupling". Steven is a huge fan of David's work as the Doctor, so I think it's safe to ume that they wont let him go without a fight.. This is one thing that I don't think there will be any press leaks on.