Out of curiousity, being a big fan of wolfdogs, how would you envision a wolfdog be visually different from the lupin (based on wolves) to warrant them being a separate breed? All wolfdogs I know of look so incredibly similar to wolves in terms of build (colours usually not so much - but then again, those are all over the place on LW), that they might be too similar to lupin...
That being said, there's quite a few suggestions made already, including a hyena-based breed and an african wild dog-based breed over in the suggestion forum. Might be worth popping in there to share your ideas :)
As much as I would love to see something hyena-related being added, I don't know if we will get one or not considering they're more closely related to cats and mongooses-
I think I remember the staff saying they wanted to add breeds that resembled dogs at some point, so that'd be fun! And I would definitely love to see some African Wild Dogs and Bat-eared Foxes!