You and I both know... That's prolly the outcome.
That said... I'm getting Dark Avenger/Thunderbolts vibes from just the fact he is onscreen again.
It seems random but nothing is just put into an MCU at this level to just be an Easter egg. Feige has plans to use the characters in the Hulk mythology in some way for the MCU's future is my assumption LordBolton
Blonsky here, Shulkie show, Ross still running around, no mention of Ruffalo leaving the reservation... Even if a Hulk stand alone project isn't on the table his legacy in the MCU is still apparent and present.
Even when/if Mark ages out or feels he is gonna move on I think popularity of the character will demand some kind of project use.
It may not be Mark as Banner but I think we are guaranteed a film where Logan and Jade Jaws go toe to toe.