Kunai, I don't think the ninja protagonist's grappling hook is ever going to get old. You can swing around to your heart's content, slash-bounce off the heads of your foes, and unload chunky dual SMGs to finish the kill.

The latest footage shows an airship ascent, a few other areas, and a boss fight.
Kunai is set in a "mostly" post-human world in which Tabby, a "robot infused with the soul of an ancient warrior," seeks purpose. There's an air of familiarity to the individual bits and pieces, but the overall setting and theme seem a tad more novel than the average hopeful indie metroidvania romp.
Since we last checked on Kunai, the game now has a release window: early 2020.