I'll help out the OP.
These 16 additions to the AH GV line up would flush out some of the most significant combat vehicles of WWII (absent Japanese entries) and, along with what we already have, would provide a good representation of all periods of the war. This would help with scenario planning and add GV elements to the AvA, EW and MW arenas that are, at times, not currently realistic.
In addition, some of these, such as the Crusader were equipped for AA roles (Bofors 40mm AA Gun with an autoloader and powered mounting in an open topped turret), providing an Allied alternative to the (very) limited production Wirblewind and Ostwind. As the game develops over time, others such as the M4 Sherman were equipped for mine clearing, as flame throwers and for other specialized roles. Once added, modifying these models for specific specalty roles would be a relatively simple task (as opposed to the game modifications needed to make these specialty roles viable in-game).
While I wouldn't expect HT to suddenly add 16 vehicles to the game, particularily with the advent of WWI aircraft, I'd hope that an agenda such as this might be considered and added over time.
So, without further ado, here's my wish list (I could live with some additions or deletions from this but it's a good starting point for discussion):
Chuchill - Great Britan - 1941-1945
M10 GMC - USA - 1942-1943 - Gun Motor Carriage (Tank Destroyer) with 3" M7 gun on Sherman hull
M3 - USA - 1941-1943 - Medium Tank
M3 Personell Halftrack - USA - Includes armored personell carrier, self-propelled gun and anti-aircraft (e.g. M16) varients.
M3A3 Stuart - USA - 1941-1942 - Light Tank, 37 mm gun
M4 Sherman - USA - 1942-1945 - Medium Tank with 75 mm M3 (L/38) gun
M5 - USA - 1941-1943 - Light Tank, 37 mm gun
Mk VI Crusader - Great Britan - 1940-1943 - Tank, Cruiser, Mks I, II and III
Panther - Germany - 1943-1945 - (Panzer V) was armed with a 75 mm KwK 42 L/70 gun (Sd.Kfz. 171)
Pz III G-J - Germany - 1940-1942 - Armed with 50 mm L/42 gun
Pz IV - Germany - 1942-1945 - Panzer IV with long 75 mm L/43 or L/48 gun
StuG III F-G - Germany - 1942-1945 - Sturmgeschütz 40. Assault Gun armed with 75 mm L/43 or L/48 on Panzer III chassis (Sd.Kfz. 142/1)
SU-76 - USSR - 1942-1945 - Self propelled 76 mm gun mounted on a lengthened version of the T-70 chassis
T-60 - USSR - 1941-1942 - Light armoured fighting vehicles
T-70 - USSR - 1942-1943 - Light armoured fighting vehicles
Valentine - Great Britan - 1939-1945 - Tank, Infantry, Mks I, II, III and IV
Oh... and if it helps I have the technical specifications on most of these including things like on-road/off-road speeds, gun elevations, shell sizes, muzzel velocities, rounds per minute, armor thicknesses, etc., etc., etc.