CK3 is nearing the same age as CK2 was when 3 was announced. Do you think PDX has started work on a CK4 and what would you want out of a sequal?

CK2 release to CK3 announcment was 7 years, we are currently 6 from 3's launch (and it began develpment all the way back in 2015). Does CK3 also have only 2 or so years left or is the 20s generation of PDX games supposed to last longer?