Any Chance Kakao goes belly up so I can merge with my PC account?

apparently, the Xbox required Censorship from what I read so Crossplay with PC will probably never happen but one Account for all Platforms would be sweet

Not likely, Kakao is releasing at least 2 MMOs in 2021 so they wont be going bully up any time soon. You wont be able to have a single account across all platforms however as the different versions are on different footing as far as content and servers. On top of this Black Desert is in a state of constant decline financially, this is why Pearl Abyss is showcasing more of Crimson Desert in a few days at the "Calpeon Ball" event. They are shifting focus from Black Desert to their next title.

Since Crimson Desert is a single player 'with online content' game- I don't see them making the same long-term money as an online MMO.  Seems that would be a significant loss of revenue from what BD makes.  Initially CD was supposed to be a replacement for BD, but during development it became a single player game.  Plus, I've also read a 'lack of focus' on BD lately was due to COVID-related issues.  It's not like they add a lot to BD anyway- they don't have to add end game quests or anything... develop a new class, throw in a brief storyline = bring people back for a few months = $$$.

On top of that, them going self-publishing on PC will also save them $$ in the long run.