Altliv will include Kyle in the "so... yeah, about the fact that I just showed up a second time..." talk she's gonna give the Lincolns and Astrid. He's like the only non-Fringe person who gets to know. Cause he gave her a map. And filled her in on all sorts of stuff.

But basically when Liv intros Altliv'll either make a post or give him an encrypted response or poke his IC contact and fill him in about what's going in with Liv and be like "DON'T DO ANYTHING ABOUT THIS JUST BE CHILL AND LET IT HAPPEN"