Just put down my new copy of the "Zombie Survival Guide" by Max Brooks and did a bit of searching on upcoming movies. Over the next two years, we got at least three zombie(ish) movies on the way:
1) Day of the Dead: The follow up to 2004's Dawn of the Dead. Looks like Ving Rhames is the only cast hold-over.
2) Cell: OK, so these Stephen King inventions were not strictly "zombies", but other than the undead part, they are pretty darn close.
3) World War Z: A movie based on Max Brook's follow up book to the Zombie Survival Guide.
The next few years are going to be great for the undead and their fans!
Day of the Dead should be pretty good. I love George A. Romero's stuff. The Crazies was one of his best, though.