Cities in Motion: Tokyo expansion has a new campaign and a monorail, so I think it does bring more to the gameplay. We have also released free patches with features and improvements requested by the community. At the moment we have a new metro station that we are working on, and we will keep you updated on future developments
Have you already requested for improvements or given any of your ideas to us? We follow the brainstorming and all the feedback and suggestions are highly appreciated!