I earn way below 20 on my posts, so I expect my post payouts will drop. I don't think people suddenly will start voting differently or more. I wont for sure since I already use all my VP. So people saying that we will get more votes doesn't make much sense to me really. And where will those vote come from if everyone already votes with the VP they have?
It looks that people that earn that 20 on posts will earn even more (+ larger curation) and the small fish that already earn some scraps will earn even less.
The gap will only get bigger and bigger...
I just hope that some of that loss will be covered up by the curation earnings that should go up.