Release Date: TBD
With just a trailer alone, Matterfall looks to be a game PS4 users should put on their watch list.
Not a lot is known at this point besides it being an arcade shooter. From Sony's official blog: 
MatterFall follows an unexpected hero fighting for survival on a ravished sci-fi world infected by a mysterious and deadly alien material known only as “Smart Matter”.
We can expect more information in the months to come, but Housemarque usually does pretty well with arcade titles like Resogun and Dead Nation. With them at the helm, you can bet it is in safe hands moving forward.