We talked about Serious Sam 4 last year, and we've heard almost nothing about it since. To recap, Planet Badass is a linear series of large arenas where you will merc goons by the hundreds using every means possible, and some that shouldn't be.
Vehicles are coming to the series, but the fast, arcadey-pace of Serious Sam 4: Planet Badass appears unchanged. Gibs will be plentiful, explosions will be enormous, and the humor parodic and crude.
For fans of the Serious Sam series, that's all we wanted and more.