I'd hate to be a stickler, but I honestly hope not too much gets leaked. Mainly for the integrity of the game and all the hard work Square-Enix has put in to it.

I've noticed a lot of the gaming community don't actually understand the purpose of alpha/beta testing. However, I do realise this is not the case for a lot of people, but some just see it as a "try before buy!" type thing, or something they can gain by leaking information.

Need to realise these releases will not reflect the final release at all.

But on the other side, Square-Enix are great at being so secretive that it pisses their fan base off. So in that respect it'll be nice to have information available!