Question about AMD Ryzen 9 5900X

I can just guess but in the beginning i wouöd say MSRP plus 50 to 70 Swissfrancs amd in 3 to 6 months maybe even below MSRP. But its just a guess

You can usually take the MSRP and add 7.7% taxes to that. Somewhere around there will be the final price.
My guess will be around 600CHF, maybe a bit more.