Although I’d like to see it running live in a game (sans video artifacts), I think this sort of intelligent ray denoising could make a very big difference in certain game scenarios.
The bottleneck is, of course, the fact that it’s proprietary. If it can’t run on consoles, Epic’s probably not going to implement it; especially considering that it requires specific hardware acceleration to run. However, if there is some way they could implement a NN to do specific reconstruction work, it could potentially make a big difference in RT lighting quality.