New cloud storage - mail.ru is a similar feature request for supporting a different Russian cloud storage. That request linked to some projects that potentially could be used. If one for Yandex that looks reliable could be located, that might speed things up. Projects going unreliable underneath us is always a risk…
“soon” seems unlikely unless someone shows up to do it. There are a ton of bugs and feature requests. Main focus seems to be on reliability, and that’s been consuming pretty much all of the few volunteers…