Like
@HopperFan mentioned, I don't think they will be doing crafts while serving dinner. That's how Disney describes it, too - "join Jessie, Woody, and friends for some energetic fun at Jessie’s Roundup, where you’ll craft, dance, and yodel your hearts out in this western revue." Not likely going to be used as overflow for Liberty Tree and serve food. I'll never say never, but I don't think it's a character dining experience, just a cute indoor air conditioned location for kids to burn off energy.