Alrighty, been playing around with your DLC and I gotta say "Awesome work!". Quite enjoying the interface improvements.
One minor issue: Your enhanced tooltips removed the trade route information. Previously in regular BNW games if I mouseover a tile where trade routes pass through I get a summary of all the trade routes that go through that tile - who they belong to, origin city (owner), destination city (owner). It was fairly useful to use that to figure out a few things (like NOT to plunder this particular caravan because it'll annoy another AI) but, like I said, it's minor and I can deal with it.
Any progress on linking the "Rename Unit" feature to someplace else on the UI other than the Promotion interface?