Bryan Singer is usually very involved in the writing of his films as a supervisor. Reading comments from collaborators Dan Harris and Michael Dougherty, a normal day working for Bryan Singer as a writer consists of coming into the office at 9am, writing until 5pm, while Singer periodically throughout the day looks over what you have written and critiques it as you're writing it. So in that respect he's very involved thematically speaking with all of his films, and as Out Of My Vulcan Mind points out, very involved in a producing capacity as well.
I've resigned myself to the fact that he'll never return to the two projects I want to see him return most to: something X-Men related (whether that would be directing X-Men: First Class, X-Men Origins: Magneto or Wolverine 2... or X4) and the next chapter in the Superman universe. While I am heavily excited over his involvement as producer and hopefully director of the planned Battlestar Galactica film, and Excalibur certainly sounds interesting, I kind of wish Singer would either do something like X-Men or Superman or do something original like The Usual Suspects or Valkyrie. I especially feel like his mark on the X-Men and Superman films feels cinematically unfinished... Like he has more to say with both concepts. Too bad we'll likely never see what he has (possibly) left to say.
I've resigned myself to the fact that he'll never return to the two projects I want to see him return most to: something X-Men related (whether that would be directing X-Men: First Class, X-Men Origins: Magneto or Wolverine 2... or X4) and the next chapter in the Superman universe. While I am heavily excited over his involvement as producer and hopefully director of the planned Battlestar Galactica film, and Excalibur certainly sounds interesting, I kind of wish Singer would either do something like X-Men or Superman or do something original like The Usual Suspects or Valkyrie. I especially feel like his mark on the X-Men and Superman films feels cinematically unfinished... Like he has more to say with both concepts. Too bad we'll likely never see what he has (possibly) left to say.