Rian Johnson was also signed on to do another trilogy of Star Wars films at one point (again entirely unrelated to the core Skywalker saga), but as far as we're aware that trilogy isn't happening either. Disney announced he would be doing it before TLJ was released, and we all know what the response to that one was like. Johnson's most recent comments about it pretty much confirmed that it is no longer happening, although without official confirmation by Disney who knows what's happening there.
As far as I know, Rise Of Skywalker is the last cinematically released SW film that Disney have planned, but the spin-offs are continuing on television. An Obi-Wan series has been confirmed, and I remember that a Cassian Andor series has also been greenlit, both for Disney+.