Yes, there will be ten Best Picture Oscar nominees next year.

I share Nikki Finke's disgust about the recent announcement that next year's Academy Awards will have ten Best Picture nominees: http://www.deadlinehollywooddaily.com/but-why-academy-to-now-allow-10-films-in-best-picture-category/

As she noted in her post, the ten-nominee policy doesn't extend to acting categories. It's just a dumb ploy to get a few preordained-blockbuster films into the Best Picture contenders--and, presumably, boost Disney/ABC's ratings next year.

Here's Andrew O'Hehir of Salon.com with his comments on the nomination changes: http://www.salon.com/ent/movies/btm/2009/06/24/oscars/

And Sharon Waxman's THE WRAP also weighs in:
http://www.thewrap.com/article/attempt-academy-improve-ratings-oscar-telecast_3885