I could see BMIR being a potential there, probably not Flybe unless by some miracle they add another airframe to DSA and did some limited W patterns to unserved destinations.
I am surprised DTV has no connection to Jersey given 80% of airports have that connection.
Southampton I was told is popular due to connecting to cruise liners?.
And I have said before and will again TUI need to return but I'd bet they would only offer similar to the HUY offerings.
It seems monumentally stupid to let it go under, seems your local MP isn't earning their keep!.