I would not plan to buy any specific GPU expected to be released in the future. If your 3070 is struggling now, now is probably the time to upgrade. But if you want to wait until better price/performance options are available, you probably dont have to wait for 5070 series. Radeon 8000-series will probably launch this year, and even if Radeon 8000 isnt quite your cup of tea, it's likely to trigger price drops for GPUs like the 4070 Ti Super.
I would not plan to buy any specific GPU expected to be released in the future. If your 3070 is struggling now, now is probably the time to upgrade. But if you want to wait until better price/performance options are available, you probably dont have to wait for 5070 series. Radeon 8000-series will probably launch this year, and even if Radeon 8000 isnt quite your cup of tea, it's likely to trigger price drops for GPUs like the 4070 Ti Super.