"I would wait unless you need one ASAP. I don't think they will release a new one next week. I would imagine they want to utilize all production of the 27" screen to go to iMacs initially. I would not expect a new display to come out till early next year."
That doesn't make sense. They are producing 27" TBD's now- updating to the magsafe II and USB 3.0 isn't going to change their panel display inventory one bit.
Except to say that there are A LOT of us waiting to purchase a TBD for these two changes! So then they would see an increase in demand.
If they don't update tomorrow- then they prolly won't until retina displays become available next year. It seems like Apple is increasingly, albeit slowly, out of touch with what their customers want. How hard can it be to change these two things?