1. These cards were planned long before Nvidia reviews, we even got the leak that there would be 9060 XT 16GB and 9060 XT 8GB before reviews.
2. 12 GB is unlikely since they are using 128-bit and GDDR6 for Navi 44. The 9070 GRE is the only easy way to do 12 GB and that's a China-exclusive and may be too cut down to be widely sold.
3. 9060 XT 8GB is not too bad if it offers something like RX 7600 +30% perf, at an MSRP of $250. I think most of us expect it to be too expensive though, like $300. Vote with your wallet and ignore the card if it looks like junk.
4. As far as names go, this is what has been floating out there:
9060 XT 16GB
9060 XT 8GB
9050
9040
Leaks have said that there won't be a 9060 non-XT. That could always change, of course.
The bottom three are likely 8 GB or less, and any of these cards could be considered "good" if the MSRP and street pricing are low enough. Nvidia RTX 3050 6GB still sells for $180, and an RX 9040 should be able to beat that easily.
Best I can do for you is a 9080M.
😛
https://www.techpowerup.com/336010/amd-mobile-rdna-4-lineup-led-by-radeon-rx-9080m