The latest news are that Kira Takenouchi (she started Yaoi House and YAOI Underground) has found God. The third Taming Riki book will not be finished.

*UPDATE* Kira is back at:
http://www.kiratakenouchi.com/
where only her fiction will be posted for now. Taming Riki book will be finished by Kira.

other authors seem to go with a newly created SL Publishing Group:
https://slpublishinggroup.com/site/index.php