I know you have your reasons and I won't question your capacity or vision, but I'd definitely be more interested in an active 'Sublime Text' that is maintained on an ongoing basis than the current major release model you have.
Back when ST started to get popular, you were up against Notepad++, TextEdit2, Visual Studio perhaps, and others. Now there's Atom and VSCode that are actively maintained and have active communities. I doubt I'll use ST4, but I wish you all the best, but I do think the model is wrong.