Let me start by saying these changes seem good from a theory POV (As long as we are rewarded reward shares based on ranking only and the terrible SPS change is abolished).

I invested in cards, not pockets of SPS. Removing CP for SPS was the worst move SPL made. With CP I rented and had cards rented from me, after it changed to SPS my rentals went from 100 to 200 DEC a day to 10 to 20 DEC a day, and forced me to drop from low diamond/high gold to silver as my reward shares per win dropped to nothing at the higher levels.
Now that we can't control our league, lets hope we are rewarded per win at higher ranks to acquire a decent amount of rewards now.