Can't see these all happening. Sooner or later, people are going to max out on superheroes, especially if they're all running ongoing series (or, worse, several interlocking series). In particular, if "Fantastic Four" doesn't do well I would expect that line to end, and I fear for the Spidey-verse if "Sinister Six" goes the same way as "Amazing Spider-man 2".
(I'm also far from convinced DC are on the right track with their films, as I don't think "Man of Steel" is a good foundation to be building on. But I'm sure they'll do something with those characters, so even if "Dawn of Justice" bombs there will probably still be films in those spots, even if not those specific titles.)
Conversely, Marvel's 'main-line' appears to be unstoppable, and the X-films look to be back on track after a few weak entries.