It’s always possible to juggle around releases to perhaps do that (concurrent release), but studios are aware of our ‘lag’ from licensing to update so this is a reason why some are OK with us picking out new titles.
Also, the bigger issue really is ‘the big picture’. I can’t speak for all JAV fans outside of Japan, but I can speak for our own subscription base and based on access numbers, ‘new’ titles aren’t necessarily as popular as ‘old’ ones. What our subscribers enjoy more than anything else are titles that don’t necessarily star any famous names—or even recognizable faces. Rather just groups of people doing abnormal things.
In fact, our future update schedule is pushing hard in this direction with at least one update each month from here on out being a ‘group does abnormal x’ theme (next month we’re showing VANDR-089).
Our most popular title of the year is this one (
https://www.zenra.net/amateur-nanpa-017-having-sex-while-my-friend-watches-part-one-hd-subtitles.htm ). It is 2-3 years old and really outside of Yui Kawagoe (who does not appear as herself), it’s a total amateur-fest.
What I am getting at is although within JAV communities such as A-O, it seems like new titles starring famous actresses are where it’s at, but once you zoom out and also include the casual fans--for us at least--what’s popular is not who’s in the movie or even when it’s filmed, but what it’s about.