If we're including Eastern comics, I would love to see a live action Astro Boy adaption worth a damn. It exists in comic form ([url=https://en.wikipedia.org/wiki/Pluto_(manga)]Pluto[/url] is god damn amazing). There have been attempts at a live action based on [i]Pluto[/i], but that's fallen through just like the attempts at an anime adaptation.

On the Western front... Sam Alexander, in a series connected to the MCU's Guardians of the Galaxy.