Yeah really hope the rumor about giant MC isn't true, would be terrible. Though I don't really believe it. Hope Canis stays as well. Stormraven or a variant of it and some of the vanilla marine toys makes sense.
Would like to see Wulfen kit, dread kit and Wolf Scout kit.
I don't want to see a major overhaul. I like most of the current codex. Bringing Blood claws and Scouts more in line with grey hunters would be nice. Scouts don't really feel like the veterans the lore implies to me. Wolfguard able to go with skyclaws. Wolfguard Assault Terminators cost brought more in line with other armies Assault Terminators.
Is there a lore reason for Space Wolves to not have apothecaries? Not sure if I would want that in or not, probably though since most armies coming out have some access to FnP as long as it was limited.
Really I'd just like some more flexibility, instead of feeling like if I want to win, spam more Grey Hunters / Long Fangs.