DMM and MAGES started a countdown on the Super Galaxy Fleet official website in Japan. If you visit now the website you will see that the countdown going to reaches the 0 on August 4 at 14:00 (local Japan time).
Super Galaxy Fleet is something like the KanColle. The service started in 2015 May but a few times, MAGES had to pause the service for some bug and problem fix. Visit the official website now and lets wait together the August 4.