Mensch tells one fan who asks about the upcoming remasters, "Jimmy is digging through the archives for material that's never been released to the public before." While that may excite Zeppelin fans, there's bad news in that statement too: "No progress (on the solo album Page has said he's committed to doing) yet. Currently focused on rooting around in the Led Zeppelin archives."
Mensch also states that "some" of the Led Zeppelin remasters - talked about here as reissued box sets - will be released this year. It is hoped Coda will be included in the reissues.
Finally, on the question of will Led Zeppelin do any more shows, Mensch is not the optimistic one:
Honestly, my gut tells me they won't.