As per usual these kinds of articles must be taken with a grain of salt, but I thought it was worth mentioning anyway.
https://www.starwarsnewsnet.com/2017/03/do-not-post-lucasfilms-post-star-wars-episode-ix-plans.html
A lot of people have been worried that SW will from now on be treated similar to Marvel, with one film released pretty much every year without any breaks, but it’s suggested here that Lucasfilm might be taking a break after Ep. IX.
“There seems to be a plan for a hiatus on Star Wars movies – a plan that will happen after a few years after the end of the Sequel Trilogy.”
“Lucasfilm will want to deliberately starve the market of Star Wars movies for a time.”
In that waiting period there might be a few TV series to fill the gap.
“Star Wars on television is going to become a big focus over the next few years.”
It’s also possible that there won’t be any anthology films immediately after Ep. IX. Lucasfilm keeps saying that they want to make an Obi Wan film, as well as a Boba Fett film, but it’s possible that they will choose to save those for after the hiatus.
“Kathleen Kennedy and the rest of Lucasfilm fully intend to make an Obi-Wan movie set between Revenge of the Sith and A New Hope, with Ewan McGregor in tow.”
If true, there’s also some hope for the Boba Fett movie;
“As far as I can tell, the movie will most likely not be an origin story.”
“It’s not strictly a Boba Fett movie, but a film about an ensemble of bounty hunters on an adventure.”
The article also suggest the possibility that Gareth Edwards might be offered to direct another SW film at some point.