I may be enticed. It seems like you have all the players you need, but lack of follow through seems to be a trend so I figured I'd toss in my hat now.

A bit more specificity on what I was thinking, without making an application quite yet, I'd likely go for a 'Holy Land' type deal. Fairly weak military strength, but draws in pilgrims and with them commerce. The church(esque Viking thing) would oppose migration since the land couldn't support pilgrims anymore and there could be some interesting Priest vs. King bits there. I'd definitely go for some sort of theocracy.