I'd much rather the Carnivale be expanded for any other limited jobs they release, consolidating those resources into one avenue like Eureka, instead of just one thing for one job.

Thematically it could work well. Beastmaster could have a lion tamer/circus ringmaster vibe to it, Mime would fit right in there, and Onion Knight could have a kind of toy knight or joke weapon theme to it.

This way you provide a decent avenue for limited jobs that doesnt strip resources from the rest of the game (if it takes the place of eureka tupe content) while benefiting more people with just one type of content.