I expect TX and GA to turn purple fairly soon, and I expect the EC will survive even that just fine. The barrier to change is simply too high, and of course, if TX and GA are purple, it won't matter in terms of outcomes anyway.
We'll be back to popular vote wins of 4-5-6% and EC wins of a much larger apparent margin and folks will forget the EC even exists.
I think the widest spread in recent history is not that much of a spread on the popular vote really, 59%? And the number of candidate who have achieved a majority in the popular vote is also remarkably small of late.
So, even by the popular vote, the President is elected by a plurality at best.