I don't know what he's planning, but it looks like he started the fee idea despite everyone's objections. I don't know how many people will agree to pay for this service but I know TW is a favorite social network for a lot of people even though people often complain that there are too many annoying bots on it. He is an extremely intelligent person, he is not a decision maker without careful calculation and now let's wait and see how people react to it.
"Priority ranking" on that picture sounds like that non-paying users will be filtered out from feeds. Basically it's going to be making twitter commenting impossible if you don't pay. You can comment but no-one will see that. Which is the same thing.
I can't believe how quickly he messed this service up. First he kicked essential staff, then advertisers left, then this. I am already looking for alternatives. Too bad i had a cool account in twitter. I am starting to check analytics of my tweets to confirm if amount of "impressions" drop, because seems like it like it's already in effect. I need few days to confirm that.