Hello everyone.
That CKII feature also did me into preordering.
Now II have a few questions about my empire...
Some of them were already answered by ckiiwiki such as:
What happens with vassals? Duke an equal or higher ranked vassals will become vassal nations.
What about province improvements? The number of holdings in CKII will set the province's tax base in EU4.
Now the big one.
I started with Brittany (culture group Celts)
As a Celt was able to create the Empire of Britania
I have conquered the CKII World and I am the personal title holder of every duchy and equal and above tier titles in a primogeniture succession law and highest crown authority (except the Pope that I will "fire" in the 1400s (I'll dejure-war him Rome as king of Italy and since he has one holding in Britain, I'll give him the bishopric in Rome and take him of Salisbury so to create a sort of "Vatican"
I took every kingdom titles (greek, perm, Andalusia, etc...)
Breton is my culture and spreading but not the only one (actually most of other cultures are still there but that should wear off)
Let's shoot it: How will this be converted?