The first couple of DLC maps are out! One of them is for EXP grinding - lots of monsters, some worth normal amounts of exp and attack your units, others which are far more valuable try to flee but have much better stats and hit like trucks. If you find yourself hitting a wall in Conquest it might be worth a play-through just to give your units a bit of an edge.
The second map is far more unusual. It plays more like a scenario - although the characters are familiar, their stats and inventory and classes might be nothing like what you have. You choose from a variety of preset teams to play with, which are much smaller than you might be used to. It's very silly and does not attempt to hide that fact at all. Supposedly the reward for completion is some artwork.
I'm gonna go ahead and draw the line at purchasing DLC to negate one of the main draws of Conquest, that being the absence of grinding. First you pay money to have an adventure built around not being allowed to grind, then paying more money to go back to grinding? That sounds self-defeating on the same level as buying a trivia game, then buying a guide that just tells you all the answers.
Up to you, dude. I've got a dozen extra maps to eventually try out (not counting the free Awakening DLC), at least some of which have unique prizes for victory, and when I get around to Birthright and Revelations I'll be able to play them then too. Nothing wrong with some extra content.
On an unrelated note, I just now discovered a neat little feature in My Castle. Press the L button while wandering around, and the view will shift into an over-the-shoulder 3D persepective. While you can't walk around (as far as I know), you do get to check out your fortress from a grounds-eye view. Any of your soldiers standing around will be visible as well.
On a third note, what do people tend to do with Mozu? I can't decide whether to promote her from villager (BOTH of those promoted classes sound interesting) or switch her to a different class and promote from there.