I hope for a little more PCIe lanes so I can run 2 gaming VMs on these and upgrade my old Threadripper.
Had to look up what vm gaming is. What's your motivation? If you don't mind sharing.
You're not getting more lanes without a new socket. Or a PCIe switch, which is expensive.
for that you need new socket and motherboard. you need to physically route those extra lanes to pcie slots or other components
There is fuck all difference between x8 and x16 for gaming. Heck with PCIe5 even dropping to x4 is borderline noticeable outside of benchmarks.