I believe this to be all correct.
There is no incentive for The Avs to not expose Langeskog. It really appears that the Avs will be losing him in UFA regardless. Seattle has first dibs to sign him, or any other unprotected UFA. They may sign a number of them before the expansion draft, but maybe none. If they do sign anyone they will the, obviously (I think) count in the $50 million in contracts (is that the cap floor?).
Anyway, it is pretty clear that Adams has a deal in place, or very close, with Linus, since he is a protected UFA.