You did read that I made a worst(best) case assumption?

I don't know when 3.19 will come out, could be tomorrow, could be another year, anything in between or even never.
I REALLY DON'T KNOW!!

Once it is out I'd consider anything between 6 months and 2 years after that a plausible 3.20 timeline.

Hence I want to be ready by next summer as I just don't like to be the reason for any potential delay.

If it gets pushed to late 25, 2026 or even beyond I will add "bonus" features but always ready to get it into a release state at a short notice.

Well thats the plan as far as one can make plans based on a hobby project done by a small group of middle aged men.