RJET won't shut down, at least not for a long time. They have a pilot shortage and will simply reduce schedules and renegotiate with their partners until their staffing and block hours equalize. With attrition they may have to be on some sort of long term fleet reduction plan unless staffing can materially change.
Even if they were on track to have a sudden shut down, their partners will swoop in and take over. Look at Delta and Pinacle- there was no way Delta was going to allow a sudden and dramatic interuption of its feed.