I stopped posting retro news as no one seemed that bothered but this is big
Yes in 2019 we're getting a brand new SEGA Saturn game, I believe this is the first indie/homebrew Saturn game mainly due to how hard the Saturn is to develop for and it will just work without any mods or anything, which is great.
I'm guessing it's a fighter from the image and Joshprod have ported Breakers from Neo Geo to Dreamcast that I could see it being similar to that.
If you don't know who Joshprod is well it's some dude not called Josh who's brought over to Dreamcast, for instance, a PSP 4x4 racing game, a Neo Geo fighter and bought the Flashback IP and released that on Dreamcast, sure none of these are official but close as I think you can get due to them being ports etc that he would have hadn't to get permission to use or just but in the case of Flashback.
They've also done some SNES, Mega Drive and been the publisher for new games as well.