The current crewing arrangement of the 717 will cease in the next few years, once a decision has been made about which aircraft will eventually replace the 737. Currently qf are so short of domestic capacity, if indeed another 3 are 'being inspected' it is a temporary measure. I highly doubt it though....
The other issue we have in the short term is crewing....we are (unbelievably) short of crew. Once the numbers are right, the 717 will be sold off (still a strong market for them in the US). We already have a wholly owned subsidiary (network) so if they decide to keep a dedicated regional jet (unlikely....airbus anyone?) why pay another mob of contractors. So...sorry, but cobham has a limited lifespan...