At equilibrium, the total amount of rewards paid out should equal the inflation rate. If we assume that prior to the HF they were at equilibrium (which I am not 100% sure we were) then there should be no net change in total reward payouts after things settle.
What will change is the distribution of rewards. It depends on voting behavior, but most likely authors that were receiving high payouts pre-HF will be getting less, and authors that were receiving lower payouts pre-HF will be getting more. It is obviously an oversimplification which doesn't address all the scenarios, but that is the basic idea of how it should work based on the new formula.
If I still maintain dollar upvotes at 100%, I will still be amazed. I never thought I would achieve that. I was quite excited about the dimes I was giving out pre-HF19!