In a sequel about a three way conflict, maybe your PC (either continued from here or a new PC) could play off and eventually side with any of the three factions? or bring them all down. then you could see lots more MF without them having to be the main villain of it? As BG3 used them so much it I'm sort of sick of them?
Also speaking of dragons we didn't see
We didnt even really get to see a dragon? Only those gith red dragons who, while red dragons they aren't the intelligent powerful red dragons of faerun, but just dragons as mount sub-class feat. It'd be nice to meet a dragon at some point in this new shiny graphics age.
