A bunch of these requests or reasonably close approximations are present in ETW :)
Still a bunch of great ideas here.

Some not mentioned yet:
*Proper coastal cities -related to cities on rivers/unique layouts
*Sea battles! -Galleys are in ETW but ramming doesn't do much (may be doing some that isn't represented on the hull strength bars though?) I wanna see some 15s & 30s etc :D
*A new Manoeuvre layer for when armies approach. -This would give say several days/weeks of turns (or 'real time'?) where you can attempt to escape battle/scout the enemy position?/choose your ground/perform large turning movements/circumvallation/bombardment/sapping etc.
This would have your army visible in marching order which is something currently not visible & would satisfy my desires for 'army view'.