I don't see Dak's stock rising, he's been in the league over 4 years, other teams know what he is, and isn't. To think that just because the team is doing so terribly on offense now vs before he got hurt other teams have suddenly woken up and realized "Hey, he's a really a terrific quarterback, who knew?" is laughable.
His value to teams has been established for the most part for the last couple of years, sure some teams may have thought they had their quarterback of the future, like Tampa Bay for example, and have since realized they don't and now are interested in Dak, for example.
His stock is less, if anything, due to the injury. But higher?
Not in my book...