SF-on: Some have mentioned this. Interesting why people want to keep Machamp in, yet kick out Unown G. This balances out some of the SP dominance, and keeps some favored cards in the set, also leaving a nice, solid number of packs to go off of. This also keeps Heatran lvl X for burn decks, and Dusknoir lvl X for Ectoplasm. This is an interesting choice, and I think it will work out to an extent if they choose this. Though, it would be odd to only keep one DP pack and kick out the rest, wouldn't you agree?
RR-on: This one is what interested people the most. They figured out if they kicked out all of the SP only trainers, it'd balance things out and make SP's not so dominant. But it did it a bit too well. Without many of these trainers, SP decks will be slowed down tremendously, causing them to become more rogue decks instead of winning almost all tournaments. No Uxie, Claydol, Azelf, or SP trainers. It does, however, leave a nice variety of packs for the next BR. Though, perhaps kicking out one platinum pack, and keeping the others doesn't seem to good.
These. SF on is the best choice imho. Machamp would be the crux of SP with no Unown G, but actually it wouldn't be as bad. They need to ban a few cards for SP imo, that would balance things out. No poketurn for example.