That simply means AMD’s likely in the validation/testing stages of RDNA 4 at best. Nothing to it other than that.

Not much per-game optimizations need to be done on those architectures at this point. Polaris is 7½ years old, Vega is 6 years old. We’ve had 3 new GPU generations after Vega. It’s clear AMD will prioritize RDNA moving forward, like how it prioritized GCN over Terascale after a while.