These are all of the current changes.
Buffs
- Passive can't be turned off by DoTs and if she's damaged while she has a shield her passive won't pop, plus it scales higher as she levels
- Q can do 150% extra damage if it kills a unit and bounces onto another target
- W can reactivate strut and has a lower cooldown (They may give it significantly more attack speed too)
- E has a lower duration, but the slow is much stronger and it also does noticeably more damage
- R does more damage according to how many stacks of her W passive she has on them already
Nerfs
Overall Miss Fortune is getting a significant amount of buffs, it won't make her a totally different ADC but it definitely makes her passive more useful and even gives her more damage. Really, as a person who's probably played Miss Fortune for hundreds of games I don't think Grevious Wounds was that strong. It wasn't game changing, and it rarely ever was effective besides that one rare chance that the enemy ADC healed within the 2 seconds you auto attacked them with their Summoner Spell.
I think the community has very little clue what they are talking about when it comes to Miss Fortune, she maintains an above average winrate hovering at around 51.70% constantly, one of the highest pentakill averages in the game, typically obtains more kills and does more damage than most ADCs, and with less deaths. She statistically is strong and her kit is fine in my opinion. She's a really dominant early and mid game champion that has a hard fall off late game.