Yes, I'm curious about this as well. Altera has a couple SOCs using Cortex-A9 and Cortex-A53 IP, I wonder if the whole division will get killed.
But ARM+FPGA hybrids are available from Xilinx as well.
Not so much get them out of the market, but to be a viable competitor in that market. Perhaps in much the same way as they're trying to do with Quark against regular ARM SoCs.