
CBR| Marvel to Publish New Ultraman Comics in 2020
Marvel and Tsuburaya have announced this deal together at the Tokyo Comic Con. They didn't give a lot of further information, neither on release window, nor on creative teams. Even the promotional art by Alex Ross seen above is re-used from a series of promotional poster art Ross did for the Ultra Series quite some time ago.



My guess is that the deal was struck just shortly before the Comic Con, so they didn't have time to get new promotional art.
Anyway, Marvel has quite a line of licenced comics now, with Star Wars, Conan, and now Ultraman. Also, this is another step for Tsuburaya in making the Ultra Series an international franchise.
One thing, though, there's a line in the CBR article:
"Now, as we enter the 2020s, [Ultraman]'s making his way to American comic books thanks to Marvel."
This gives the impression that there never were American Ultraman comics before. In fact, there was a licenced comic book in the early 90s based on the Australian co-production "Ultraman: Toward the Future" (aka "Ultraman Great"). There have also been some Asian comics based on Ultraman released in North America, from the Hongkong "Ultraman TIga" comic series released by Dark Horse to the recent Manga series from Viz (which is the basis to the Netflix show).
In any event, I'm quite looking forward to this.