Pokémon X and Pokémon Y

I hope it's over 750, but I think if it was, they'd have said "over 750". Only 52 new pokemon would be slim pickings, especially when you only get,at most, 45 of those in a playthrough (You miss out on the other 2 starters+evolutions, and the other legendary), and that's assuming the other 45 are in both versions (extremely unlikely).