Ok, unless you NEED a new MBP NOW! why the heck would you buy one? If I'm going to spend $2000 on a computer, I'm willing to be patient for a change to get more bang for my buck! Its insanity to buy one now if you don't NEED one.
On another note...
I personally think that the next MBP will have a magnetic latch and slight redesign.

Why? Well think about it. They've had plenty of time to change some things. Also, the magnetic latch made it on the macbooks last summer, so its overdue to be on the MBP.

Whether or not it has the new trackpad, IDC. I wouldn't mind a small redesign, get rid of the plastic edging... But I just hope they don't do a multi-color black and silver. Maybe offer a solid black option, but none of the crap on the iMac, PLEASE!
Here's the new specs I hope for:
2.5 GHz and 2.6 GHz (possibly 2.8 option in 17")
160 HDD (upgradable to 250, maybe 300. But 200 standard would be nice since a lot of PCs offer that for that price)
nvidia 8600 or 8800 with 256 (standard) or 512
LED problems fixed
higher resolution screen (comon

, your supposed to be the creative junkie, where's the High-def?!?!?)