I bought some advisors of the market just before this was announced as I could see where Conquest (mini game in Golem Overlord for those that don't know) was going with the ability now to use your Advisor for battles. There will also be a XP(experience) system introduced as well I believe to level them up, as you can already see at the end of your battle it has an XP section.

I was already enjoying the game and it just keeps getting better.