The Dear+ Twitter has revealed that the release date for 6 Lovers
OVA collection has been changed again to February 2018 from the scheduled Fall 2017 release.
Dear+ is a magazine from Shinshokan that started in 1997 as a seasonal magazine. It wasn't until 2003 that the magazine release was changed to monthly. The magazine mainly serializes boys love manga works. The OVA collection was originally expected to premiere in August of this year, but was delayed to Fall 2017 due to production issues.
Source: Dear+ Twitter