I think it would be a really cool idea if you implemented the other skills from MB , Trading, Leadership, etc. into it.
Anything that provides a bonus to strategus is a good thing, but you've got to consider that some players will be all over the advantages, and will be able to successfully get in on about any fight they like.
Kind of unrelated:
Also would it be at all possible to do any kind of troop structure so that you don't just have "tickets" but you get to play as something like a Rhodok Tribesman or Swadian Knight in battle with pre-set stats? Or, perhaps have a different set of stats for your Strategus mercenary, so you're not awful after retiring on one of your first generations?
Seems some good players do poorly in some battles because they've got a very specific build which isn't supported by the gear loadout. Maybe that's the point, I dunno.