Yes, it will be released either on 15th or 16th November
Unfortunately the scenario changes are not my strength, I dont know how to make changes in them. But anyone willing can use this mod as a base for new campaigns via the editor in the game - this mod changes some game parameters, it is not a new scenario or campaign
And the good news is that this mod DOES NOT need a game restart - the only thing is that some bonuses after the battle are based on the number of battles fought and you will miss some bonuses but still it works without a flaw for all saves under Orcs on the Marsh.