Development has already started. It was a little slow earlier this year due to work commitments, but has picked up a lot in the past month or so.
I have answered this question with a roadmap of features to come. There is no ETA though, since it depends what other paid work I have on at the time. Hopefully a beta can be released in a few months.
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April 20, 2021: Q2A 1.8.6 released!