I'm not a fan of the unrealistic trackside ads like "Reiza" and "Fasters", but more than that it would be great if we could change the trackside billboards and banners just for variety. So will we ever get a graphics editor for this?
I've thought about this for a while. It would be very cool for modders to put out track skins sort of like liveries to go with events for different classes.
Apparently this is being worked on by modders (and solved). The brand new content manager by @RockyTM will include this possibility.