Season 4 starts in the States on 8th of February 2021.
The upcoming 4th season will be the last.
This is a shame, they set up the Justice League type thing in the Crises crossover and now shows are finishing, not sure what the appetite from the cast will be to return for future crossovers once their own shows are finished.
^^^ there doing a spin off featuring the Pain Killer character.
Season 4 gets a new poster