Did Scotty actually figure out it was Qo'nos?
The OP used the spelling "Kronos" - correctly, in my opinion. I don't know where the heck to post my annoyance at this more recent spelling of "Qo'nos." It makes it sound like a speech impediment - the way Kripke would say "Kwonos" on Big Bang Theory. It's nearly as bad as Sci-Fi changing its name to Syphilis, er, SyFy. It could be an appropriate topic for most any of these forums, so I'll just limit my complaint to here.
Who did this - is it canon? Official canon from primary sources (series/movies)? Or fan or out of band canon (books, comics, 3rd party licensed materials etc)? I have seen it used in various sources. So who made it canon? The Roddenberry crew or the Abrams usurpers? I'm rather tired of the writers' cliche - not just Star Trek but everywhere now - that makes words alien with a simple apostrophe. It was new and unique for T'Pring and T'Pau in the 1960s - as far as I knew. Now, it's used everywhere and it's just a dumb trick.
Can fans organize a canon coup d'état to eliminate this thing and just go back to Kronos?