Flynn: Son of Crimson. A 2D pixel sidescrolling action adventure. Think metroidvania, but perhaps not with that overarching structure. It appears to me to be more like a narrative adventure, and at one point in trailers you can see a Super Mario World-esque style point map. Gameplay is a combination of sword slinging and riding your mythical beast companion
Surprisingly, Flynn: Son of Crimson wasn't listed on any of the upcoming games lists in the OP. It is being published by Humble and showcased recently Xbox's Gamescom showcase (part of their "humble games on gamepass" initiative).
Severed Steel. Indie FPS that is about score attack/level completion using stylish moves and destructible enviroments. Think combo'ing parkour moves, sliding on the floor, and other action movie stunts with appropriate amounts of slow motion. The promise of the game are all these cool moments where you are switfly pick up a gun in order to return fire while sliding, or grabbing an enemy's gun while you kick off them, or all other sorts having fun with the enemy AI. Severed Steel reminds me of what would go through my own imagination when I would replay certain levels of Mirror's Edge just to mess around with the guards.