Last week on our dev stream we showcased the upcoming Trainyard changes which will incorporate a ton of performance improvements, bug fixes and also gameplay updates. If you want to check out those changes, take a look at our developer blog and enjoy the images. For higher res images there's also a link to the Imgur galley.
Higher Res Images
We are also working on the other OBJ/SW maps and will share content on those in the future. Also, take note that these changes will not go live with the Summer Squash updates, but in an update following. Being map changes they take longer to complete and we plan to release all of the maps at the same time.