1. Thanas in the high castle - Hearts of Iron III LP, Nazi Germany. I am somewhat ambivalent about this. On the one hand I have no desire to play the Nazis, on the other hand the HoI III gameplay is a bit stale aside from them. Play as Russia? Great, build huge army, then wait, then crush. Boring. Britain? Build Navy, build Bombers, wait, crush. USA:MEGAWAIT, then crush. Japan meanwhile I have no interest at all to play.
2. HoI II Kaiserreich mod - the closest we can get to a continuation from the last VicII game.
3. New CK II game - CKII got a new expansion, might be nice to play it again (this time, not the Romans, but probably a Saxon Lord or northern german person. Maybe a merchant republic?)
4. New CKII game, with The Winter King mod. Basically, Arthurian Britain in CkII. Would probably play as Syagrius then.
5. New EU IV game, Byzantines or a nation of your chosing. EUIV got a few new expansions, who add some interesting mechanics.
6. New EU IV game, custom nation. Honestly, who doesn't want the nation of Thanasia to rise form a one province minor to a great power?
7. HoI III with the Great war mod - lets take on the challenge of winning WWI.
Let me know via poll or text what you want to see, 3 votes per person.

EDIT: Kaiserreich is a HO II mod, not a HOI 3 mod. My apologies.