In my (rather limited) experience with Larian, they rarely give official word on what they're doing and tend to play things pretty close to the chest. I mean for the first 2 patches we didn't even know what they were for until 2 days prior to release. If you want my (totally speculative) opinion, it was 11 months between D:OS2's release and its definitive edition. Now D:OS2 was in far rougher shape than BG3 is when it first released so I can't imagine the relatively small touch ups they need to do to Act 3 and the endings will take almost a full year, but let's be conservative and assume 11 months as the worst case scenario. Once again, totally speculative opinion, but I honestly have a hard time seeing it take that long, Swen already said they're calling VA's back into the studio, and it's not like they have to completely rewrite the last 2 acts like they had to do for D:OS2. I would wager we have to wait a few months, which I am more than comfortable waiting for if it means we get more sweet sweet Karlach content.
Another thing to consider is that D:OS2 sold 7 million copies over its entire development life cycle. BG3 hit 7 million copies in its FIRST MONTH, and it hasn't even come out on consoles yet. They have way more to work with than they did last time.
