Looking at the specs it seems each core has a total of 4 GB of memory. That's going to be an issue in the long run since once Ethereum reaches Epoch 384 the DAG file size will be too large to fit in 4 GB. At the current rate that's going to happen in the beginning of 2021. However, should Ethereum devs decice to speed up Epoch switches then that deadline could be hit much sooner. It seems like an easy way to render the ASIC out of date without resorting to hard forking the algorithm or switching to PoS.
They would NEVER do that because at the same time youd screw over everyone with a 3 or 4 GB GPU.... That means all 1060 3GB's, all 1050ti 4GB's and any RX 470/480/570/580 with 4GB (which is the major one here).
Epochs will never be "sped up".