Sounds fantastic!!,
How about some screen shots of the campaign map, also what years does the game cover? and is it 4 turns per year?. Some alternate campaign and battle music would be great (would really give you a feel your playing a different game), im also an advocate of reduced campaign movement points, as this brings better stratergy into the movement of army's..rather than them just by-passing you and moving through an entire country in two turns!!
Did i mention the 30xunit mod?

...i actually think the unit size of 400 and perhaps 360 for line is a great number and have been playing this wiith ETW+DM for some time, as to the unit mod, i think the 30x mod is the best with ETW because of fort battles, it does'nt seem to effect FPS either.
Looking forward to this one!