She will be an even stronger jungler and team fighter, but her lane heals will require her to not free wave clear.
Keep in mind Ravenous Hunger pretty much replaces her spell vamp for small minion heals, so losing that doesn't matter, and is probably WHY they are changing it. But, they're making her vamp vs the main targets even stronger..... up to 40%.
That means her Pre-Spirit visage heals will be up to 55% ( 18.33 on aoes) to the most important targets. With Spirit Visage, 71.5% at level 16. She's going to be so potent in a team fight other teams will be FORCED to get grievous wounds, like vs Swain or Vlad.
I jungle Morgana. she has good clears, is ungankable, and offers some of the strongest ganks in the game with her Q. She's also able to reasonably solo drakes, and clears passive minion waves when roaming for ganks in empty lanes with no effort. Each jung camp has a Large monster, so guess what? At level 4 she will effectively have Morg's old Max Spell Vamp. Her only old weakness was W's clear speed being constricted by doing more vs low HP targets. But that worked about as well as most 2nd string junglers.