Bretonnians never had their own team I think, although Tomb Kings did. Would be a cute 'tie-in' to TOW that way if they did one of those either way. BB would definitely suit the goose though, you're right, but I'm not sure who else it could be for at this point.
I'm surprised we've still not had a High Elf team, given I remember them being relatively popular back in the day.
If I say "it'll be Chorfs" enough times, it will eventually come true. Probably. Maybe.
Okay maybe not.