Mmmears -
As Vala said, nothing has been formally annouced yet. We are still assuming that the start date of Halloweentime will be Friday, September 24th, based on what DLR did in 2008 and 2009. Of course, that could change and they could suddenly decide to start it earlier or later. (It started earlier in 2007, so you never know).
The TOTP looks like it is going to begin on Friday, October 1, and be held on every Friday, Sunday and Tuesday in October. Based on the unofficial reports we have already read, the TOTP looks as if it is heading to DL and away from DCA, forcing DL to close hours earlier on TOTP nights. Again we assume that the prices for the tickets will be higher than they were when the TOTP was held in DCA, simply because DL is larger and there is more ground to cover. Exactly how much they will charge is anyone's guess.
I think we will find out about the exact TOTP prices and dates before we actually get word of the official Halloweentime start date (in July), so that TOTP info will likely be coming soon.
There are rides open - in fact, at DCA I think most of them were open but a few may have been closed. All the big ticket items were open, as I recall - and the lines were not as short as I expected them to be given that this was a ticketed event.
WazowskiLOVER has some great photos of herself at the TOTP dressed as Peach from "Finding Nemo," in this cumbersome starfish outfit, trying to get on TSMM!! Hilarious!!
Of course, we have no idea what will remain open in DL if this, indeed, is where the TOTP is held. We assumed that they would give us access to the entire park and its rides, but something on the DLR website about trick or treating in "the ultimate Disney neighborhood" made us think that they may only have TOTP-related things in certain sections of DL. So they may just put treat stations in certain areas and the rest of the park might just be regular/non-Halloweentime DL. DCA is so much smaller, so they could kind of spread things around. But DL is so big, and I just don't know if Disney has the time or the inclination to deck out all of DL in Halloweentime decor and put treat stations and other Halloween touches all over the park. I wish they would - that sounds cool - but it will require more time, money and effort on their part.