Dark Souls 3 is the last game in the series, Miyazaki confirmed in a recent interview with Polygon. Once the second DLC launches after Ashes of Ariandel, From Software will be moving away from the Dark Souls franchise. However they will be utilizing whatever they learned during the development of the Souls series.
“It’s time to move away from the Dark Souls franchise,” Miyazaki said in an interview with Polygon. “As president of From Software, I’m not completely denying the possibility of bringing back the franchise in the future. There could be someone else in my company who wants to work on new installments. But we believe that the series will end after the two DLC.”
“I’m not saying I won’t work on a Dark Souls-like game or a dark fantasy game. We’d like to carry over some of the good things from the franchise to new products. As new technology is introduced, we would like to take what we learned from Dark Souls and use it in future IP.”
So, I guess this is it for the Souls series, however this does not mean we will never see a possible Bloodborne 2, something that I am hoping From Software will develop for the PS4 in the coming years.