Re: Batman vs. Superman (2016)
Going from MOS to Justice League is exactly the same as how it went for the Hulk, Thor, and Captain America. Thor hardly ever wore his costume in his first movie as well. One origin/reboot movie then a team movie. Only IM got the benefit of a sequel prior to The Avengers. Now if you're talking about "building multiple stories" prior to the Justice League then that is another issue entirely and has nothing to do with Superman being "robbed of a sequel."
Your Hulk example is not accurate. It would be like if they made Iron Man 1 and THEN they added Hulk and Thor and Capt America and Black Widow and Black Panther etc. to the Iron Man sequel.
Now technically you could say that is what happened to Captain America but even His time in the suit was a lot longer than Superman's, he fought longer than Superman did, and again, there were all these other movies before. Marvel took its time to build these stories.
(hell, even Iron Man had the suit longer than Superman had His suit. Superman basically had one long fight and that was it.)
Going from MOS to Justice League is exactly the same as how it went for the Hulk, Thor, and Captain America. Thor hardly ever wore his costume in his first movie as well. One origin/reboot movie then a team movie. Only IM got the benefit of a sequel prior to The Avengers. Now if you're talking about "building multiple stories" prior to the Justice League then that is another issue entirely and has nothing to do with Superman being "robbed of a sequel."