AMD's upcoming Renoir Zen2 APUs could feature a Vega 12 iGPU, according to information from Komachi. Since the 7nm node affords accommodation of more cores, it is also being speculated that a Vega 15 iGPU is also highly probable. We don't know much about these upcoming APUs, but a proper memory implementation could seen them further widening the gap with the Iris Plus Graphics G7 and the NVIDIA GeForce MX250.
https://www.notebookcheck.net/Iris-Plus-and-MX250-could-be-in-trouble-AMD-Ryzen-4000-Renoir-Zen-2-APUs-touted-have-a-Ryzen-9-variant-expected-to-sport-Vega-12-and-Vega-15-iGPUs.442582.0.html