I think I'd rather hold onto Jarry for now just to try and recover his value somewhat. I also don't want Hextall to give out any sort of stupid contracts with the saved cap space by moving Jarry for a cheaper backup.
I don't want to enable the Penguins to spend a bunch of money in depth roles on players they don't really need. I feel like going cheap on goaltending really enabled JR to do that, and I don't think that's a good way to build a team. The Penguins won in 2015 and 2016 in big part due to getting superb value out of depth players like Bonino, Cullen, Rust, Murray and such, but if you're spending a ton of money and/or assets on depth players (like Tanev, Brassard, Pettersson, Bjugstad, Matheson and such), you're blocking out those cheaper players from really contributing.