By now JS Kaga and her sister JS Izumo are getting fitted for the F-35B, so you can say there’s once more a Kaga serving as a Japanese aircraft carrier.
https://www.navalnews.com/naval-news/2019/08/usmc-to-first-fly-f-35b-from-japans-izumo-class-aircraft-carriers
Helicopter carrier JS Kaga during arrival at the port of Shiga to participate in the open day on Board the ship. 14 July 2019.