If you go on /r/strava there have been threads about it all week and a large percentage of posters say they are cancelling. It seems like this is blowing up in their faces a bit.
I'm in the "still shows original price" boat for now. If/when my annual renewal comes due and the price is $80 instead of $50, I'll probably cancel as well.
I definitely cancelled mine. I decided to switch to using Garmin Connect fulltime instead of that and Strava.