I would be surprised if ExpressJet (ERJ and CRJ) are shut down in 2018, but the odds of it being around past 2020 aren't very good.

The CRJ contract with Delta expires in 2020 and the AA CRJ-700 contract expires in 2019 (it is only a 2 year CPA). I cannot speak for the ERJ United CPA, but the AWAC deal announced in January does not bode well for XJT as I believe the ERJ side will have less than 100 airframes in 2017.

It is really sad what is happening at ASA/XJT.