however, I think this is far from complete...will BHG release a full comprehensive list?

is there any documentation coming from BHG at this point?

SELECTION MODIFIERS
Drag = Select all
Ctrl + Drag = Prefer Military (May be swapped with above by a preference change.)
Alt + Drag = Non-Siege
Ctrl + Alt + Drag = Siege
Alt +Shift + Drag = Aircraft
Ctrl + Shift + Drag = Workers
Alt + Ctrl + Shift + Drag = Transports

ATTACK MODIFIERS
Ctrl + Right click = Attack move
Alt + Right click = Siege attack only

AIRFIELD ATTACKS
Shift + Right Click = Send all your planes to a target
Ctrl + Right Click = Send one bomber
Alt + Right Click = Send one fighter
Shift + Ctrl + Right Click = Sends all bombers
Shift + Alt + Right Click = Sends all fighters

FORMATION MOVES
F = Forward
Ctrl + Up = Forward
Ctrl + Down = Backward
Ctrl + Left = Rotate Left
Ctrl + Right = Rotate Right

Shift-K = Select all Barracks
Shift-S = Select all Stables
Shift-O = Select all Siege Factories
Shift-D = Select all Docks
Shift-C = Select all Cities (try Shift-C A V for super-quick econ growth)
Shift-, = Select all military units
Shift-. = Select all idle citizens
Alt-Rightclick = Garrison
Shift-A = Aggressive Stance
Shift-E = Defensive Stance
Shift-R = Raid Stance
Shift-Z = Raid Stance
Shift-G = Stand Ground Stance (I think)
Shift-Multiple Tasks = Queue orders