I loved that scene at the beginning the best, of them just sitting around talking.

I hope joss gets to spend time doing that character stuff.

That theory seems to be foreshadowed by the hint of the hammer shifting in his grip. I've also seen the speculation that Natasha's refusing to make the attempt is deliberately leaving it open for her to succeed, which seems a bit more out on a limb to me.

I'm interested by its being Bruce who suggests the question to her, and is sitting next to her. It rather looks as if she's bonding with both Bruce and the other guy. That would be a big development.