Allright, not long ago i beat KH2 on the hardest setting, and there was a secret vid (which most of you already know) there were three knight looking charactors that had these sick looking keyblades, and then the fields of other keyblades....at the end of the video it says birth by sleep and something about "where it begins" 

My guess is that some guy made three keyblades to protect something that we dont know yet (possibly a hint of  Kingdom Hearts 3) then these three knights guys were given the three blades to protect something...then the leader of the Organization (final boss in KH2) and Ansem have something connected in years to come, then nearing the end of the video, its saying a bunch of stuff splatered on the screen, and there is the shadow figure behind, that is probably the man who started the organization (before Xenahort (whatever his name was, the organization leader, you know), 2nd guess is Sora's friend (not kairi, but the blue haired guy, worked with mickey mouse), or 3rd guess, the creator of the three keyblades.

Remember this is just what i think by what i saw, no flaming if you disagree please...

anybody have something else?