The situation is unclear. But Christi has promised that Chloe will not train at Abby's studio. And Chloe will not be competing at the same events they attend, at least early in the season.
Christi has often said she had a 6 year contract, and was saying in September she still expected them to be on the show.
I'm not sure how to reconcile all that... unless maybe there will be segments on the show in a largely "separate universe," that involve Chloe and Christi doing things alone.