Yeah, that's how it's *supposed* to work (as long as they don't screw anything up) - guaranteed stones for PVP and team leader battles any time on the day of your CD hours. Also, it appears that the higher number of rewards (but not guaranteed stones) actually went live today (Friday), so try to get in some extra battles today as well.

Meanwhile they also recently announced that Ancient Power will become a move that has a chance to boost stats - but only in PVP for now. Still, probably worth evolving a few to have it in case it turns out to be really good and/or gets expanded use later. It can always be TM'd away if not.