You are refering to what, Minsc's epilogue at the end of BG2? If so, personnally, I never considered it canon as it was written for a videogame. I prefer the version of WotC. It allows Minsc to be used in the FR's current timeframe. Also, I don't know about other people, but I liked the story/canon they made around Abdel Adrian, how they made him a true hero and one of the grand dukes of BG.
I have no clue what you are talking about. As a fan of BG1&2 (the videogames) and no futher interest in the setting used for those games, my only concern is if Minsc in BG3 will make sense/work as continuation of BG1&2.