https://store.steampowered.com/app/1056640/Phantasy_Star_Online_2/
Also the store page is accessible to European users, there's no region lock to the page, so maybe EU release/servers incoming together with the Steam release?
EDIT: Seems like it may be releasing on Steam on August 5th:
https://twitter.com/JetGrindFuture/status/1288132836772515843