They will have but not much is gong to change with the next-gen I'm afraid.
According to new rumours, the upcoming flagship Blackwell card, the RTX 5090, is rumoured to sport a 448-bit memory bus, sporting 28 GB of GDDR7 memory, a deviation from the initial speculation that it would feature a 512-bit memory bus, and 32 GB VRAM.
This suggests a potential shift in the memory configuration initially anticipated for this GPU.
So basically, it will not use all the available 512-bit memory bus of the GB202 die, and only 14 memory modules would be used out of 16. So that should give 28GB VRAM. 4GB more than the current gen RTX 4090.
Also, assuming Nvidia would utilize 28 Gbps speed GDDR7 memory modules initially, we could see a total bandwidth of up to 1568 GB/s on the 5090, which is 56% more bandwidth than the RTX 4090 (384-bit @ 21 Gbps).
They could reserve the remaining VRAM for later Ti variants, if need be, or used it on a "ProViz" RTX GPU.