I was a huge fan of this lets play. I was also very disapointed when it never retured due to the save file crap. With viki 2 now over, perhapse you could start a new LP of EU 3?
Yeah there is nowhere to go with th golden horde even if you somehow beat back everyone else. If he really wants a challange that is still do able he should play as an Irish State.
Play as Genoa start with a few provinces spread around the mediteranian and then take out your big trading enemy Venice then the rest of Italia and go from there.
I also think he should play an Irish State, prefably Tyrone (My family history dates back to being Kings of that region so I'd like to see a lets play of them )
I'd enjoy it either that or scotland although with the inevitable brittish invasion he should definatlytake out iceland first thing and use it as a base
A lets play of Scotland would be interesting, he could ally with the Irish States and then take out England and form Britain, Iceland would be a good base for colonising the Americas and Greenland also.
I think he should let's play as one of the nations in the Holy Roman Empire. I just think that would be interesting because I would like to see him as a little power, and then rise up as a big power controlling all of Germany, but that is just me.