Why do you think WB will not green light a sequel? If Batman Begin did only $374,218,673 WW its entire run and MOS did 400 Million in 10 days which franchise do you think is on the right start considering it’s a reboot and it had to live up to STM’s legacy and also clean everyone off the Superman Return’s stink. What's the right choice here? Also, you have to consider that the GA likes MOS with especially with an A- CinemaScore. If they didn't like it you can bet it is down to a B- or C, even the review from GA average 4/5. If BB can get a sequel with a mix GA and pull TDK out of it and everyone that once hated on it or doubted it begin to call it a master piece MOS can do the same. IF WB did not green light the sequel you would have never seen TDK. MOS is now in the same situation. WB knows that they are doing with their two top franchises. The problem was always trying to move on from STM and Superman Return. They have done that with MOS and can finally move on to their share DCU. It would be stupid to start everything over because a few fan boys and GA aren't happy with MOS and how Superman is not like what they wanted. If 85% of the GA loves MOS, 10% mix, 5% hate it why would you not move on with the sequel. It would just set you back 10-15 more years trying to start the franchise again.
Kevin Tsujihara is’t stupide and knows what’s he’s doing with WB. The man knows that this is the time to run with MOS and their JL movie. Everyone knows that just Batman and Superman on the same movie will be huge. One can only imagine what JL can do at the BO is done right. I bet he will establish the DC Studio to focus on bringing MOS 2, World Finest, JL, and all other DC character to the big screen. This is probably why they no longer need Legendary as their partner.