[Thor definitely doesn't need to know what becomes of him, even if it won't necessarily come into fruition. He's already full of uncertainty, though he's acting positive.]

So you live in a world with more than one Loki? [He asks a question, but he pulls a face that says say no more.

..And then he laughs at Loki's last observation, because it absolutely sounds like something his Loki would do.]

I very recently dealt with Malekith and a very poorly timed Convergence. [He'll search Loki's face for a sign that he's familiar with the time, but moves on all the same.] Loki made use of them in his attempt to rule Midgard, as well.