I feel like considering the whole 8months delay situation shit, they'll probably be pretty light on nerfs this patch. If they have plans to remove it, it'd just be easier to push it to next patch and be like "after reviewing the data from 3.26 we feel -mana reduction is too good now that it's accessible, so in 3.27 we're removing it from craft but it can still drop directly" shit. At this point they'd rather get an easy win so people are hyped about it than have the somewhat usual early league doomposting. I kinda expect the league mechanic to be stupid rewards for the same reason, instead of the common mild to bad rewards getting buffed 2weeks later they usually do. Could be wrong but I'd be surprised if they make one of these 12pages of nerfs patch.I hope you're right. They've taken away Reduced Mana Cost % on flasks(maybe justifiably?) and Replica Conqueror's Efficiency(mostly unjustifiably) while making builds pay for triggers. No -mana cost on jewelry would hurt.
Weapon craft being better than a keystone is kinda weird, I could see them getting rid of it on that alone.