The system was becoming broken anyway, it is too easy for creators to cheat patrons. Creators didn't keep their promises, or simply under-deliver. A lot of creators just went silent and disappeared. The best way will be for creators to post completed games \ creations and only charge for those... This way the milking phenomena will be diminished and only those who can see their goals to the very end will succeed.
With the changes to some of these patron sites, the big bread winners that were making thousands upon thousands of dollars will of course take a big hit, but it doesn't really take that kind of income to make these things... A couple rigs and a few people can still pump these things out, if they take the time to do it... When you see some of these people making 8000, 11000, and 30000 dollars a month, that is already insane and way more then they should have been making anyway, especially at the slow speeds these things get released...
Overall, this will be a true test of developers devotion to their art... If they were doing it for the greed, then yes, you will most likely see those games end and/or the developers stop doing as much work over a given period of time and/or outright vanish... If they were doing it for the craft and the artistic expression, as their primary love, then most likely you'll see them stick around... Mostly because they were probably doing fine before the income started rolling in, because income wasn't their goal, just a side prize to support their love for the craft/art...
A true artist wouldn't give up, just because their cash flow dropped... Plus there are other ways to go about crowd funding, besides patron sites... With patron sites it is too easy to take advantage of the fans in the first place, milking them in some cases... Like the old saying, there is a sucker born every minute...
