With a POD after September 1, 1914, have WW1 end on or before December 25th of the same year. Is this possible?
It might be possible, just barely, if, after the Christmas Truce of that year, the troops on both sides basically say, "This war is stupid and pointless and we're not fighting it any more," though honest I think that's a fair ways into ASB territory for sheer implausibility of the higher-ups not shooting "cowards."
If the British stay neutral and Bulgaria enters early, the prospects of an Franco-Russian victory are about zero. At that time the mainstream CP war goals were comparatively trivial - Serbia under the bus and probably reparations to Germany.