Deal with Tor Launcher potentially disappearing entirely
https://trac.torproject.org/projects/tor/ticket/31286#comment:42 reads "Once tor-launcher is gone and its functionality has been completely integrated into Tor Browser (9.5?) […]". It's not clear to me if it was already decided this would be the case, or not. That ticket has a bunch of discussion, ideas, and mockups on this topic.
We should get in touch with the Tor Browser team ASAP to learn what their plans are: if Tor Launcher disappears for real, we'll need to Do Something About It™, which will likely not be cheap.
Relevant past discussion on this topic: https://trac.torproject.org/projects/tor/ticket/30473