Don't forget the spectrum auction is coming up. Maybe Sinclair combines the best parts of KJZZ with KMYU and puts the Ch 46 (KJZZ) spectrum up for auction.
I don't think there's a lot of room for any network affiliations. They already have MyNetworkTV on 2.2/KMYU which could theoretically move to KJZZ, which originally cleared it in the early morning hours back when it was more of a real network. Now it's really just a fancy syndication service. I just can't see any of the big 4 networks moving to KJZZ, and even The CW is a stretch, though that's half owned by CBS which already has an affiliation with KUTV.
If I were a betting man I'd say KJZZ goes dark, but I wouldn't put a lot of money on it.