I'm working on another biome featuring a giant bridge as a point of focus / objective to use. The bridge goes over a ravine or canyon with several levels of depth. The canyon is another spot that could be used for an interesting mission, as one side can deploy troops down there trying to cross map sheets, while the other side can be deployed on the ground level with a goal to stop them.
This one is made on Grasslands biome and will be compatible with other grassland themed maps - just not from every side. Long map edge seems like a good spot for a connector.