Is it possible to upgrade my license from standard to pro or do I have to buy a new license which will cost $4K?

Hi LLars,

Yes it's possible. Intel Quartus Prime Standard Edition software licenses are eligible to upgrade to Pro Edition. The number of upgrades available for purchase is equal to number of valid Standard or Subscription Edition software licenses.

Refer to the link below - Page 3

https://www.mouser.com/pdfdocs/Quartus_edits-2.pdf

For your kind info, not all devices are supported in Quartus Standard is supported in Quartus Pro. The only device family supported by both is Arria 10. You can check the device availability in the same link provided -Page 1

Thank you.