First World strategy will be very boring and limited. It is very hard to make a high-quality, interesting and accurate WW1 game: BF1 is all the same BF3 / 4 about special forces only in the pseudo WW1 theme: total automatic weapons, prototypes. Verdun - who wander fairly accurate but boring. Another problem: the Western front was very positional, to make a strategy about it is very boring. The Eastern Front could solve this, because it is less positional, but people will take over Verdun, Somme, etc. And the Western Front will be needed to sell the game to European / American gamers.
Partially a good point
I disagree with WW1 and positional warfare being boring, especially not verdun being boring,
but CoH really is quite about somethin else
Would love a separated DLC or a different game for WW1 though