It seems that one of Atlus' announcements for Tokyo Game Show 2017 has been found prematurely. A banner on the publisher's Nico Nico livestream page shows an advertisement for Dragon's Crown Pro set to release on PlayStation 4, which has not been formally announced.
The ad redirects to http://dragons-crown.com/ , which does not yet show a PlayStation 4 version.
Dragon's Crown is a side-scroller RPG - developed by Vanillaware - which released back in 2013 for PS3 and Vita that we liked a lot. We don't know if this version will contain significant enhancements similar to those seen in Odin's Sphere's PS4 port; we'll have to wait for the announcement for more details.