That's what screenshots on the official site show, anyway. Chespin starts out with Tackle, Growl and Vine Whip, and learns Rollout at some point before level 8, Fennekin begins with Scratch, Tail Whip and Ember and also gets Howl at some point before level 11, and Froakie begins with Pound, Growl and Bubble, and it can also obtain Quick Attack before level 8.
First thoughts: Froakie starts out weak compared to the other two! Remember that Tackle got buffed to 50 power in gen 5, but NOT Scratch and Pound, which are still stuck at 40. Maybe they thought of everything and buffed them to match Tackle, who knows? Bubble is a kick to the face too, why not Water Gun when the other two get Vine Whip and Ember? Of course they could've also buffed Bubble, at which point, why not just give it Water Gun to start with?
Also, looking at the screenshots, you can see Vine Whip now has 25 PP. FINALLY. 10 in the first three gens and 15 afterwards was just silly. On top of that, look at all that room! I can totally see why they increased the character limit for Pokémon and attack names. It wouldn't have been as easy with how little room was provided by the previous handhelds, especially considering everything's already so much longer than in Japanese to start with.