Maybe not quire what you’re looking for, but look here: Scrivener 3 Windows Release - #2 by Argoed
Before releasing v.3 for Mac. September 2016.
That’s not quite a promise, of course. Still. It was four years ago, and the Windows v.3 was expected ~half a year after the Mac v.3
Thing is, you need to dig really deep to find anything, because this has been going on for several years.
People have been complaining about the lack of communication for two years now. That’s because there was an understanding that Windows v.3 was expected to be released in 2018 (most probably because of the “likely to be a good six months” after the Mac release). I can’t remember if I participated in any discussions to try and dig out more, it was so long ago.
Then there was also this: literatureandlatte.com/blog … rses-mouth
Sounds like a promise to you?
And there was this: literatureandlatte.com/blog … gic-number (notice it’s from year 2017).
Seeing how “highly likely” argument has been enough of a reason for international economic sanctions, I’d say “likely” sounds like a promise. However, in this particular case there have been several “likely” estimates, which means they don’t know themselves. which is probably okay. Who knows what might have come up, what difficulties. Porting to another platform is not an easy feat.
Still, people are frustrated, and it’s understandable. It’s been going on for several years, with all these - yes - promises. Myself, I’ve tried beta and quite liked the look and feel. However, it expiring every two weeks or so without any obvious way to at least fetch settings to reinstall, made me uninstall for good after the third iteration.
Back in 2018 I left for Typora and Writer+ (because Linux & Android). And when the quarantines & lockdowns started, I decided to go look at what was the state of affairs in the Scrivener kingdom. Imagine the laughing fit I had, when I saw that no v.3 was still released, no estimates given, and people were still complaining about it.