Apparently, the D4 director Hidetaka “Swery” Suehiro is not interested in making a season two of D4: Dark Dreams Don’t Die.
Swery is not interested in returning to the game for a follow-up.
If you want to see more of that, you are out of luck.
With Swery having announced a brand new game, The Good Life, which he is trying to get crowdfunded on Fig, there are many fans of D4 who are wondering if he will go back to finishing up D4‘s story, probably in a second season.