I asked this question on PokeBase, but Blob said it belonged in Meta, so I am re-asking it here.
I was looking through DB's section on X and Y when I saw that is said:
As with every new generation of games, new Pokémon are introduced. The total number of Pokémon will be brought up to over 750, meaning there will be at least 100 new Pokémon.
Currently there are 718 different pokemon, with 69 pokemon having been introduced in X and Y. I was wondering where the above information came from. Is it wrong (i.e. just speculation, given what happened in previous generations), or was it from an official source, in which case it is likely that 30 or so new pokemon might be released in future games?