Kathleen Kennedy has appeared to confirm during an interview with MTV that a project set in the Old Republic era is in development.
When prompted by MTV that a lot of fans would like to see something related to Knights of the Old Republic, Kennedy smiled and confirmed that this was something had been spoken about a lot and that something was in development right now. Planning seems to be in early stages right now, as she was keen to avoid giving any sort of hints as to what the story might entail, and went on to reiterate the plans to have a longer gap between movies going forwards.
Star Wars News Net has previously posted a rumour, that had apparently come from a reliable source, stating that the project being worked on by Game of Thrones TV adaptation creators David Benioff and DB Weiss was set in the distant past of the Star Wars canon. Rian Johnson has already denied that his Star Wars trilogy will be set during the Old Republic era, and it is widely thought that he would be picking up from threads he wove into The Last Jedi.
On a personal level, I would hope that a Knights of the Old Republic project would draw inspiration from the Dark Horse Comics Tales of the Jedi series rather than the more recent video games that followed. As Darth Bane has already been confirmed as existing in the new canon, it is possible that we may see some of his story come into play.
You can check out MTV's interview with Kathleen Kennedy via Twitter.