If Qualcomm released a FOSS RISC-V IP core that would’ve required spending multiple millions on hardware engineer salaries (no chance in hell), I would:

1. Spontaneously ejaculate
2. Pull out my FPGA

takes this opportunity to develop a high performance RISC V core

They might. This would never be open sourced though. Best case scenario is the boost they would provide to the ISA as a whole by having a company as big as Qualcomm backing it.