The simplest answer is to wait and see I suppose.
But as far as I know, if anything, the opposite would be true. i.e. having insufficient VRAM
could benefit (relatively marginally) from having more RAM.
I suppose because some textures might get put into RAM rather than VRAM - and RAM is slower than VRAM, so you take a performance hit with that. There are apparently instances where, say, having a GTX 1060 3gb might run less choppily on 16gb RAM than on 8gb RAM, whereas you see less of a difference between 8gb and 16gb RAM with a GTX 1060 6gb. See:
The Benchmarks & Putting It All Together. Measuring the impact that RAM capacity has on gaming is harder than it sounds because of all the factors at play. However we've tested different hardware configurations...
But the best solution would be to have sufficient VRAM (or to intelligently manage your settings) in the first place.
It doesn't seem having lots of VRAM requires you to DOWNLOAD MOAR RAM!?. Apparently there was a myth to that effect (explored a bit here
), but as with many PC myths it's rubbish. At least as far as gaming goes.
You shouldn't need to worry about your RAM quantity.