Class talent systems are going to be radically overhauled for Mists of Pandaria. Players will choose a specialization at level 10, then select one of three talents at levels: 15, 30, 45, 60, 75 and 90. Classes will receive their defining core abilities automatically.
Builds will be pretty flexible in that talents will be easily swappable. Ghostcrawler mentioned that talents will available for changing – much in the same way that glyphs are now. You won’t be able to respec during an encounter or arena match, but you will probably have the option of tweaking your talents in between boss fights or BGs, arenas, etc…
GC mentioned that Kill Command was going to be the level 10 spec ability for BM Hunters, so it’s looking like KC will be a ‘BM only’ ability. Makes sense. Intimidation will become a level 30 talent – available to all three specs.
Here is how the Hunter talents are laid out as of now. Keep in mind that any or all of these talents could change between now and the eventual release of MoP…