With the recent release of Dark Souls 3 at the end of march, From Software is already working on their next game, which is going to be brand new IP, according to a recent GNN gamer interview with Series director Hidetaka Miyazaki. In the interview the only information that was given about the new IP was that they are working on something different to what they did before. We will probably get more information within the coming months on what the new IP is that From Software is working on.
Its not the end for Dark Souls 3, there will be 2 massive pieces of new game content releasing the season pass, the first one coming within the yeah and the next one within 2017, prepare to keep dying.