Hi,
I just saw the new screenshots over at Matrixgames and I have to say that I'm looking forward to playing this game. What strikes me odd is the naming of provinces: I've seen "Ost Preussen", "West Preussen" and "Ost Pommern". I take it that you want to avoid German umlauts like ä, ö, ü or ß (btw, why? I've seen "Elbemünde"). In this case "Ostpreussen", "Westpreussen" etc. would suit better, IMHO.
Btw, "Wechsel" seems to be a misspelling, correct is "Weichsel". You seem to flip-flop with Wisla (I'm lacking the Polish letter here) anyway. I admit that this subject can get touchy.
Oh, another one: "Wolfsburg" doesn't exist in 1914. If you need a name for that area "Fallersleben" will fit.