Here's everyone I personally think will drop off:
Hyuga, Taheita, Ryo, Darkshad, Trela, False, saj, Pugwest, Day, dyr, Nietono, Vinnie, Tyrant
Here's who I think MIGHT drop off, but have at least a small chance of staying:
Mew2king, Pink Fresh, 6WX, Ned, MVD, Wrath, falln, Dath, ScAtt, WaDi, Rich Brown
Here's everyone on the v2 that I am positive will stay (v2's Top 20 excluded):
Kirihara, Locus, Samsora, Fatality, ESAM, Earth
I believe that anyone on the second list who remains on the PGR will either drop a good deal, or remain at the bottom if they were there in the PGR v2. The same goes for those on the first list.
For the third list, Earth will definitely drop. Locus, Kirihara, and Fatality will definitely rise. I am unsure as to where Samsora and ESAM will place.
Of the Top 20, here is who I believe will rise:
CaptainZack, Salem, Komorikiri, MKLeo, and Dabuz
Of the Top 20, here is who I believe will fall:
Ally, Larry Lurr, VoiD, Abadango, ANTi, Kameme, Nairo, and Mr E
PGR v3 Top 10, in my opinion: ZeRo, MKLeo, Dabuz, Nairo, Mr R, , Ally, Larry Lurr, Komorikiri, Salem, and Ken. CaptainZack gets 11th.