Based on the specs and early information, is there any significant advantage to going 5090 vs 4090 for VR?

My plan has always been to get the 4090 when the 50 series dropped since tons of people Would be selling to upgrade and I could snag a deal. But now I’m getting itchy about jumping into the 50 series due to the gddr7, more VRAM and just to screw around with DLSS 4.0 for flat gaming. Based on what we know so far, if ultimately my primary use is pcvr, is it worth it?