GPU RTX-3070 upgrade? Your advice and recommendations are appreciated

Seems like I approached a T-crossing here:

1- Should I push my current Pc (older MB) to the limit by upgrading it with an I9-9000k and a RTX-3060ti?
2- Wait a few more months and go for a AMD build (MB and CPU)? I still would add a RTX3060ti to this system.

Option 1 is the cheapest and easiest but will be the end station for my current Pc
Option 2 takes more time (and money) but should be more future proof.

I’m not really familiar with all the detailed technical terms so your advice is really appreciated.