Somewhere on this forum I read at lvl 60/61 you will need 40% less xp going to 25% less for 69/70.
Basicly you get a few 'free' levels when you just look at the time needed to level up I'm at 62 with my crew atm, not going to wait for the patch, but it's a welcome extra :thumbup:

Ofcoure, I too havn't seen a blue post on this, but I think people got the info from the beta.