Don't think we're gonna see anything before the 95>99 patch, i.e. november/december.
They only spoke about CoP rings btw. It would be nice for them to include RotZ earrings, CoP earrings and ToAU rings, but it's not necessarily what will happen.
They will probably change the stats to reflect those of level 99 rings.

If things keep this way the last tier of crafted rings will offer +8 to a single stat, and earrings will offer +5.
They could just make Rajas give up to +8 STR/DEX and so on. Of course a small update to the MP and HP of the other 2 rings would be needed as well, but I doubt they'll touch the STP on Rajas.