OK folks, please bear with me:
So I've been using X for several years, at http://thewordpresshelpers.com (note that it redirects to my Automattic-approved http://wordpress.answerguy.com). That site is ONLY an archive, as the project was abandoned in 2015 after my infamous "Automattic and I settled lawsuits" issue. And I haven't updated either the theme or Cornerstone in years, because doing so breaks the site.
I MAY (emphasize "may") want to move my license from there to http://adulting-101.net . At the moment, I've got that site set as my sandbox and am therefore in compliance with the single-site license I own.
So I have a few questions:
1) IF I go ahead and move my license to A101, is it permissible to make TWPH my sandbox... and then just leave things as-are? I have no intention of buying a second license just to leave an old and unused-except-as-an-archive-of-an-old-version-of-the-theme live.
1a) If the answer is no, then assuming I go ahead with plans to use X on the new project, I'd take some sort of snapshot-in-time to leave TWPH "up", and call it a day. So seriously, to avoid that I hope the answer is yes.
2) The REASON I'm considering using X on the new project is that I already have a framework built on the old site that will work for the new site; I just need to change the categories and replace the content. But I've become a Divi guy, and honestly using that (or actually, its X-ish little brother "Extra") would work, if with a bit more start-up effort. So I'm conflcted; Using X would save me some effort now, but going to Divi would likely be a better choice for me, long-term.
3) Assuming 1 and 1a work as I wish ("yup, just flip the licenses"), then I'm left at getting the new site up and running. I could port the site over using any number of tools, and that would work fine, but I'd rather use YOUR tools and set up from scratch. So then (here's the technical question): how, using the newer version of X, do I get the old Ethos stack running?
Sorry, I know that was a lot. But it boils down to: license status, and Ethos under the current version of X.