I just got this notice today that 'Microsoft Edge will be Chromium-based beginning in 2019'.
That is great news for office workers that have been stuck using Internet Explorer because their IT teams are stuck 10 years back in time...
IE's final end-of-life is far in the future however as it will be supported on Windows 2010 until 2025.
Nevertheless, it is likely that corporations are going to start migrating to Chromium-based browser support en-masse much earlier than that.
Provided that MS Edge is going to be Chromium-based starting in 2019 and Opera already is, that over 75% of the of the browsers' market share will be based on Chromium.