The intergalactic space cops investigating a mystery in middle America sounds like the absolute best possible use of the intergalactic space cops franchise.
There will no doubt be footage. Regardless of how much Gunn says he won’t be there because they’ll be filming. The first Guardians had been filming for a week and he brought a full on trailer.
Out of all cbm directors, Gunn is the one that feels like he was birthed at Comic Con. I’d be disappointed if he doesn’t present anything.