Updated 10/7/14 for talent changes.
In addition to the level 100 talents there are also some changes to some of the earlier talents for various specs, such as the Death Knight losing Roiling Blood (and replaced by Plaguebearer.) The bigger changes will be covered on this page, minor changes will be dealt with elsewhere.
Keep in mind that these are proposed changes. This is all still very early, so take all of these descriptions with a grain of salt. Release is supposed to be “on or before” Dec 20, 2014 officially 11/13/14, so there’s plenty of time for adjustments. There will be a number of other talent changes, but those are not covered here, just the level 100 talents and major changes (such as new lower level talents.) Changes to abilities, the new Perks, Glyphs, and so on will be covered in other posts. (By the way, getting to level 90 or 100 will be easy, just use Zygor and get there fast.)
Numbers aren’t posted here, for most talents, as they’re likely to be different when they go live. As of now it looks like the squish is definite, which will take a bit of getting used to when it goes live.
Note that a number of the available talents will be different depending on your spec. For example, each spec of Mage has access to a different mage bomb. No more Frost Mages casting Living bomb, now they only get Frost Bomb.
Scroll down to find your class. Again, these will all change, maybe by a lot, before they go live. Also see our other post on the subject: WoW 6: Warlords of Draenor. Note that all the tooltips (hover over the links) are for Warlords info, so will very likely vary from the Mists counterparts.