The 2017 brushable lines means we are also going to get some 2017 upgraded playsets. This one was spotted in Canada, with the option of separate ponies and their dresses. I don't know if this is an early release, but it is listed over on Amazon unavailable with no images. Usually that means we have a few months, though it's not impossible that it will suddenly pop up available.
Get an image of Rainbow Dash using it below!
Thanks to Twilight Sparkle and Jeeves for sending it.