Honestly CK3 before V3 doesn't make a whole lot of sense to me.
Venting Rant... Now;
So lets see, we last had a DLC for CK2 in Nov 2018 (less than a year ago), for a IP that (when not on sale) has around 300$ worth of DLC for it. In their infinite wisdom they decide to instead of giving CK2 time to cool down a bit, launch something that will have to be worse than the existing IP (We all know they won't roll those features into 3), all while they have an IP that hasn't seen an update since Sep 2013 (and that was graphical). This without any announcement of a new engine to prompt a need for a change over. So what I see happening is they launch ck3, and everyone says meh, why, I've got this thing that is only a year or two old and your titles at release blow. Which will blow a hole in their sales numbers all for a product no one really asked for, that most of the more vocal and reactive gamers will scream is just a cash grab for more DLC money. Or they could have released Vic3, which people have been asking for, that has tons of room for DLC expansion that would have given time for CK2 to cool down and draw requests for an update.
Are they working on Vick3? Maybe, probably, but I don't get this move at all.