I believe Bryan Singer's time in Hollywood has long since passed. He is no longer the "flavor of the month" after directing "X-Men" and "X-Men 2" because he has so squandered every opportunity since then to build upon that momentum (primarily due to his inability to complete a "Battlestar Galactica" feature film no matter how many times they are announced) that Hollywood is now looking elsewhere for the next "Science Fiction Film Guy" even if every blown opportunity with a "Battlestar Galactica" feature film has been Universal Studios fault. As i said earlier, Bryan Singer is the "Figure Head to Blame" everytime a "Battlestar Galactica" movie fails to get made, because his name is always out front representing the project above Universal Studios name, and above everyone elses name as well.
J.J. Abrams on the other hand has had no such problems with his career primarily due to the fact that he hasn't been associated with Universal Studios in any way. Abrams is flying high after successfully re-booting "Star Trek" in 2009, and he is already moving into physical production of "Star Trek 2." I dare say that Bryan Singer is the antiquated relic from the 2000s slowly being replaced by J.J. Abrams as the new "Science Fiction Guy" in Hollywood to turn to if you want a Science Fiction movie successfully made.
Since Bryan Singer never really embraced the title in the first place.