I think S2 did it really nice, by having a all encompassing graphic around the whole screen to frame the MapView: For example.
I dislike having
1) gametime: Showing the user all the time: "See, so many hours you have wasted in this game already!" is not really fun, and the information adds not much information to the game anyways.
2) Clock. I want to play a video game to get me out of my busy day-to-day. Having a clock front and center is putting stress on me. It also has nothing to do with Widelands.
3) Coordinates: they are an implementation detail and the user should not be concerned with that. If we need to point to a certain place on the map, we should have a way of permanently flagging a place.
4) auto-hide option. Please do not add more options to the game, this is not a text editor. Find something that feels natural and stick with it.
From the position, I prefer having full width at the bottom because it is symmetric (compared to the L shape) and where most strategy games add their UI. Your mockup takes a lot of space away from content.
Have you thought about the other extreme: going towards no toolbar at all, just one button that opens a menu window to all the stuff that is currently in the toolbar. I'd much prefer that, because it gives more space for the content that really matters.