Hi! A slight correction – while I made that post on the old forums that you quoted there, I was in fact quoting something a colleague had written before, so those there are not my words. This is probably not important at all, but just to be clear! The text is from the transcript of a live Discord QnA session we did, quite some time ago.
On to the topic itself, I must unfortunately temper your expectations. We have many things in the Hopes and dreams section of our Trello board that are quite unlikely to happen, and this is one of those. The workload would be immense, and we would effectively be making Barotrauma into a whole another game, so a full-fledged MMO mode is probably not in the books for us. Some MMO-like elements being added somewhere down the line is more likely, and even that is still too early to discuss in any detail. Our first priority is seeing the game, as imagined now, to full release! What happens after that milestone is not yet set in stone.