Showcase (formerly contest) code just got leaked (along with more route stuff):
https://pokeminers.com/sitereports/contest-routes-valor-event-and-more/Showcases:
>Contest for having the largest Pokemon is the only contest type currently>Can't enter a Pokemon into a contest if it recently won one>Can only have one Pokemon in a contest at a time, you will be prompted to transfer a Mon to another contest if you try to re-enter it>Max number of Mons that can be in a contest>Must be at a stop to enter the contest>Can't enter a contest if you haven't claimed previous contest rewards>Player limit for number of contests entered>Can't enter recently traded Pokemon into contests>As previously reported, there are contest ranks and points, and you use it to rank up...This doesn't sound like content. At best it will be a new way to earn items we can already get.
Routes:
>As reported, select the start and end point, walk between your points>Name and description for the routes>Routes must be between 0.5km and 20km>Pins are the points along the route>Pins must be 15 meters from the route path and 20 meters apart>Sounds like pins are optional instead of required>Routes are reviewed by Niantic directly, not WayfareSeems more appealing, but the last line makes it seem like it will be years before most places get a single route.