DC has announced the end of physical print run for the following:
House of Whispers ended its print publication with issue #20, released this month. Issues #21 and #22 will be released digitally (on June 2 and July 7, respectively), followed by a collection of the series' final arc.
Lucifer ended its periodical publication with issue #18, released on March 18. Issues #19-24 will be released directly as a collected edition.
There will be no print version for digital-first issues RWBY #7, gen:LOCK #6, and gen:LOCK #7. Collected editions of each series will follow.