Texas is one to really elaborate on but also they use 1 and 2 loosely to make it work, although there's only so many times you can do it till it gets stale. Halloween is sorta in the same position, it would be the same maze, Halloween III's story was completely different from the other films, Tommy Lee Wallace and co. wanted it to be. When they killed off Michael they meant to kill him, there was no purpose for him to return in the franchise, he was just one character in one story of a couple that Carpenter wanted to make. As for 3 it has some good scenes to work with as well as kills but the scareactors are not gonna be as scary if they're just people with ken haircuts and suits lol. Michael yes is a big branded character but they would have to deal with many rights to do more Halloween films, the only reason why they had gotten to do Halloween II and now III is because Universal owns those films might as well take the advantage, Tranca owns the first film and fourth film, Miramax owns the latter's. So yes Michael is big branded but also at this point limited.