Let's just hope that the tactical battles do not make the game easier in the sense that you need to actually battle them yourself in order to win. A game that does this is the Total War series.
In those games you can auto-resolve every battle as well. When you do this however you get some really dodgy results. therefore you should just fight the battle yourself. If you do so, the Ai employs such bad tactics that you can win the battle by just keeping in formation. It has very little to do with tactics once you get the hang of it, and you will be able to consistently win at supposedly very poor odds.
This ruins the Total War series for me since it no longer matters how well you do on the campaign map because the AI cannot win battles. The Ai is absolutely retarded in that game. therefore I lean more towards a Civ kind of approach where placement on the map is everything and the battles are resolved instantly. Since that is not going to happen I would just like to see MoM kind of battles where the gameplay is nice and simple so the AI can actually hold his own and challenge the player and have a good chance to win when it should.