Not sure if this counts as early news or not. Leak could be faked. But if it's true, the new 9070 XT will be roughly the same advance, maybe a little more, than NVIDIA's 5070 ti. They apparently didn't compare it to the 7900 XT for some reason, but it's a 42 percent increase over the 7900, although about half of that is from getting significantly better at no way tracing.
I'm not being scientific with it, but looking at the numbers for the 7900 XT, it appears that it will come in right around the 5070 ti. Of course the price will have to come down from what they charged for the 7900 XT, but assuming that happens it looks like it will be, as usual, sort of be a wash and just come down to buyer's preference.