I think that’s the point, isn’t it? Have a community-led development branch of the game that can move forward independently.
edit: I've been thinking of this a bit more seriously. I don't think putting together a launcher would be all that difficult, and adding some default DLLs (bl-browser, blocklandLua, blocklandJs) and add-ons is more a matter of criteria and file-keeping than actual modification work. If those sort of DLLs become easier for the standard user to install, then I think there could be a rise in more advanced add-ons (or maybe call non-TS additions "mods"?) and it just generally opens a lot more doors for developers.