Looks like the first details for this year' PES iteration leaked early through a store listing, so the announcement should be imminent. Pro Evolution Soccer 2018 is currently listed for release on September 12th in North America and September 14th in other regions. There's a bunch of pre-order bonuses and a special Barcelona Edition. First details and cover:
https://www.trueachievements.com/n28023/pes-2018-prices-release-date-and-barcelona-edition Gameplay Masterclass Strategic Dribbling, Real Touch+ and new set pieces take the unrivalled gameplay to the next level
Presentation Overhaul New menus and real player images
PES League Integration Compete with PES League in new modes including myClub
Online Co-op - A mode dedicated to co-op play is newly added
Random Selection Match Fan favourite returns with new presentation and features
Master League Upgrade New pre-season tournaments, improved transfer system, presentations and functionality
Enhanced Visual Reality New lighting, reworked player models and animations covering everything from facial expressions to body movement to bring the game to life