Druid seems unlikely due to treading on the feet of incoming Kul'tiran and Zandalari druids.
Likewise, paladin would seem to also be the realm of Zandalari, especially if it adds another paladin race available to the Horde. I'm not sure paladin would really fit the theme of Vulpera either, and even seeing a vulpera in plate armor as a warrior is going to be kind of odd. Goblins and gnomes pull it off because nothing they do makes sense in the first place. But I guess I wouldn't complain if little holy fox warriors ran around smiting people.
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I'm just gonna leave this here, in case anyone was thinking about switching to horde for Vulpera rogues.