With over 1000 games with Warwick I can tell you he isn't in a good spot right now. He is getting a buff according to morello, but i'm not sure how long that will take. He was indirectly nerfed with S3 changes.
Karma, Sion and Heimer (confirmed by riot) are getting a rework, but it probably won't be for a bit much like the twitch and eve reworks took over a year.
Karma, Sion and Heimer (confirmed by riot) are getting a rework, but it probably won't be for a bit much like the twitch and eve reworks took over a year.