I believe the fork does not affect curation this way. True, your upvotes are relatively stronger, but they cost you more Voting Mana.

You can then manipulate your curation rewards by giving away 50 upvotes in a single minute, each of them worth 2% of your total voting power, but then, you'll need to recharge. You will then earn 5 days worth of curation in a single day, but your further curation will be limited.

I guess people who don't curate much can make some extra rewards, but we who have been using our HP extensively will have no difference in the total reward.