Instead of GPUs with LHR in them, what if NVidia took the opposite tact?
Remember, the physical PhysX accellerator card? It was a plug-in card specifically for PhysX tasks.
What if NVidia came out with a "mining accelerator" (*multi-purpose* ASIC miner card), that could do all of the popular algorithms, but had to be combined with an NVidia GPU, for set-up of each set of operations. Kind of like, the NVidia GPU would be the geometry pre-processor, and the mining accelerator would be the shader processor, to use an analogy.
The VRAM would be on the NVidia GPU, thus the mining accellerator, would pull via PCI-E (4.0, 5.0) bus from the GPU's VRAM content, thus also in effect allowing the mining accelerator to be "upgraded" in terms of effective VRAM space, when you upgraded you NVidia GPU.
Honestly, something like THAT sounds WAY better to me than "LHR". Granted, it would require somewhat significant R&D, but it seems doable. Power+cooling, depending on how many parallel accelerators were present on these cards, could be an issue, but if NVidia is moving up to 400-450W TDP for RTX 3090 ti / RTX 4000-series, it hardly seems that much of an issue. They could always move to an external power-supply for the card, if need be, but given the power needs of current 30-series cards and the 12-pin +12V connector, it still seems doable to utilize an ATX PSU.
They could also sell multiples of these accelerator cards, that would slot in next to each other (in risers, in mining rigs), and the require one NVidia GPU to "control" that group of accelerators, thus insuring that even those massive formerly-ASIC mining farms, would still be purchasing boatloads of NVidia GPUs (with the highest VRAM amounts).
This seems a win-win to me, and it would take a LOT of demand off of "plain gaming GPUs", just to satisfy "miner demand for accelerators", instead, NVidia could have a lineup of ACTUAL "CMPs" - Crypto Mining Processors, that were NOT just re-purposed GPUs sans video outputs, that effectively takes GPUs out of the hands of gamers, but true mining accelerators.