I'm genuinely curious to see what kind of of reimagining Larian has ready for Minsc.
Admittedly I've never been exceedingly fond of the character, so unlike a lot of people I don't attach to his figure a strong nostalgic feeling, but still... Handling a fan favorite years later is always a big bet to take. it's very easy to upset the user base.
OK, time for another autistic rant from the Baldur's Gate Lore Police.
1. As of the ending of his comic series, which takes place immediately before
Baldur's Gate III, Minsc has amnesia due to swimming in the river Styx. THIS is the biggest piece of evidence, according to me, that the plot will start revolving around Bhaalspawn, and not just any random Bhaalspawn, but the ones we know and love - CHARNAME (or Abdel Adrian), Sarevok, Imoen etc. Minsc's amnesia is a tool made for two purposes:
- To NOT have him spill the beans at the first hints of Bhaalspawn involvement.
- For him to serve as a dispenser of references and information concerning the events around the previous titles, as his amnesia will - supposedly - come and go, or recede altogether with time.
Remember - WotC thought that having Minsc NOT REMEMBER the events of the previous two games important enough to include it in outside media. Also, thanks to the presence of Sylvira, we have a 100% confirmation that the comic series were coordinated with Larian.
2. What's far more interesting to me is that he is no longer with his adventuring party, which is all the more curious since one of them - Coran's son - made a deal with a Devil, something which apparently will also happen to us in
Baldur's Gate III at some point.
3. Also - the puzzle box lady mentioned by
rusty_shackleford and others? Minsc knows her. They met in Candlekeep.
EDIT: As to the answer about his personality - this is actually uncertain, since the man lost his memories, and some of the earlier comic issues featuring him hinted that he does indeed have a darker side to him - whilst in Ravenholm a witch made some ominous statements about the ranger.