Rumors have been going around that there might be a season 3 of DTB. As of now, these are just baseless rumors but seeing how well received the series is, I don't see why not.
Personally, I was a little disappointed with the second season due to the focus of the plot shifting away from the Black Reaper. Hopefully the third season will redeem the name of DTB by putting the spotlight back on to our friend, BK-201.
Lets cross our fingers and hope for the best!