Although there is an idea of extending the Tozai Line up to the direction of Rakusai in Nishikyo Ward and Nagaokakyo City, the project was put on ice when the line was extended up to Uzumasa-tenjingawa without making any substantial progress in regard to the future plan.
東西線は西京区の洛西方面および長岡京市までの延伸が構想として存在するが、差し当たり太秦天神川までの延伸に留まり、その後の延伸の具体的展望はなかなか描かれていない。