Hia!
I mostly just anticipate the whole thing. I'm a huge fan of the books and I've been coming here to check the progress weekly for several months now and the waiting is really building up. My check on the TWCenter includes Europa Barbarorum and Third Age Total War (Pointblanks RR/RC mod for the newest version is taking its sweet time) too, but this is the mod I'm actually most hyped about. The previews so far look very good and the mindset behind the developement inspires confidence that this will become one of the great M:TW2 mods out there. I wish I could help somehow, but with zero experience in anything usefull I suppose I must just thank you guys and wish you the best of luck with the progress!
Oh, I did think of one feature I really look forward to: Somehow manageably sized campaign map. Westeros is perfectly suited for a TW game that doesn't sprawl totally out of control, in the lines of Shoguns map and M:TW's Viking Invasion Britain. Whole Europe or Middle-Earth tend to lead to scenarios with dozens of fronts and battles for each turn, which in some point make it too much work and I loose interest.