
The answer is revealed!
Agency 8Man has leaked more information, not only will Ono Yuko's comeback be confirmed this week, but the release date has also been set:
April 24th. What does this mean?
This means it's unlikely that WILL Group (the studios behind Madonna, Honchu, kawaii*, and Chijo Hebun, etc.) got her, because those studios release their films on the 25th; and SOD Group's release date for next month has also been announced, not the 24th either. After thinking about it, only one studio remains:

Yes, it's Faleno!
The work has been announced, titled "Miracle Resurrection: 300 Days of Sex, A Moment of Abstinence and Unrestricted Openness" "即ノンストップイキすぎ绝顶オーガズム3本番" means that since her retirement last year, Yuko Ono hasn't had sex, essentially abstained from sex for 300 days before returning to the film set to unleash her sexual desires:


Then she immediately transforms into a beast, pounces on the male actor, and devours him!
There's no plot, just irrational sex, perfect for the seasoned and established Yuko Ono. I know some might be disappointed and find Faleno's work unpalatable, but firstly, considering Hiyori Yoshioka's move to this studio, I think they've changed their tune. Secondly, as I mentioned, Yuko Ono's retirement likely didn't complete her exclusive contract with Faleno. If that's the case, her return would naturally make her a member of Faleno.
Anyway, let's get back to the fun!
Title of the work: Miraculous Resurrection 300 Days of SEX, Abstinence Super Open Moment That's the 3rd Part of the Ultimate Episode
Product number: FLNS-414
Release date: 2020/04/24
Actress name: Ono-Yuuko
Former stage name: Aoi
Firm: 8MAN
Height/cup size: 160 cm/H cup