I've heard from another source that EI will only be operating 2 weekly flights next Summer - Tues and Sat, obviously with A320s. The flights will stop in September, so a significantly shorter season.
Perhaps Aer Arann would consider the route; there's certainly demand, given the significant Irish population in Jersey. Having to fly through the UK is becoming increasingly tiresome, what with the extra security, additional taxes etc; with more ATR72s coming in the near future, perhaps it's an option RE could look at. ORK could prove a useful mini-hub for such a route, with onward connections to Belfast, Galway and Dublin?