I'd trade either Jarry or Nedjelkovic in a millisecond if they could. I've grown to have more faith in Jarry after his turnaround, I'm back to "he's just an inconsistent and mediocre goalie" with him, but Jarry's contract is terrible and I don't particularly like Nedjelkovic at this point. Ideally you have a reliable veteran goalie and Blomqvist as a goaltending duo, similar to how Minnesota is running with Fleury and Gustavsson.
I think it may be tough to move Jarry even with him playing well, though. The UFA goalie market is unusually good this year. Even if you assume Shesterkin doesn't hit UFA, there is still Hill, Thompson, Vejmelka, Blackwood, Quick, Vladar, Lankinen and Andersen as guys having pretty strong years that will be hitting UFA. The first 3 (Hill, Thompson and Vejmelka) especially all seem like better options than trading for Jarry.
It makes no sense with where the Penguins as a team are at, but I'd really like signing Thompson and running with Thompson and Blomqvist as their long-term goalie due. I've been a very vocal fan of Thompson for years, though.