I dunno. The more I think about it, the more I dislike the sorcery-speed part of the card. Destroying Jace as a sorcery is okay, but it costs two, so Spell Snare gets it in addition to all the usual countermagic. Pulse costs one more but also hits equipment and multiples of things, which are both relevant upsides.

If the card had been an instant, it would have been an obvious Terminate replacement. As it stands, I feel like regular Terminate may still be better unless you want to go Pulse-less, something of which I'm not a huge fan. RUG and combo don't run planeswalkers, Maverick might run a few Elspeth but instant-speed Terminate is better there, and Stoneblade's Jaces will be well-protected.

EDIT: There is no card I'd want to cut for Salvage. The card is not good enough.