I've been thinking about what playthroughs to do once the DLC launches.
I'm thinking two Saxon games, one in mainland Europe as a pagan, and another in Anglo-Saxon England. I'll have another Byzantine as well, but they may be from the 1066 start date, it'll depend on what they look like.
Other than those three I expect to tinker around with perhaps a Zoroastrian in Persia, or as near as I can without being an Abbasid vassal. Perhaps a Lombard or Visigothic ruler as well for fun in Italy or Spain.
However, I have little intention of actually playing as Charlemagne for whatever reason