There is no guarantee on any of this. Yes, it does seem likely that Disney will keep things going if the show is doing rather successful in terms of ticket sales. But, at the same time, if they are planning to make bank via amateur licensing, then who's to say that they won't stick with the original limited run, regardless of box office sales, and still make money in licensing the show out?
"If you try to shag my husband while I am still alive, I will shove the art of motorcycle maintenance up your rancid little Cu**. That's a good dear"
Tom Stoppard's Rock N Roll