The current build is 0.91. I am guessing that means that they are about 91 percent done with the final product. The latest build took care of the most annoying bugs and the few bugs I am still seeing are pretty minor at this point. I think the rest of the build may be a few more design features and maybe even requests from users as to what they believe is missing from the build.
As for a timetable, I don't like those. Look what Microsoft did with windows 11, that was an unfinished product that they released all because they were more concerned with holiday sales then extending beta.
I hope that helps.