i have no proof or SS, about 2-3 months ago in a BG, some players were speculating and discussing SL and 20's. one player claimed he played early beta. he claimed, that current 20's will be 10's (before charts we saw like on wowhead), when asked about F2P, he said (typed) that those 20s are getting squished based on banked XP level, (obviously understood F2P and vets system, but so did most of us), when asked about trial level player replied 15 or 20 undecided at this time.
player was flamed, dealt yeah right, wtf, etc. i didn't flame, but i thought yeah sure.