Are there too many sequels in 2015?

Anyone else keeping tracking of the number of sequels, spin-offs and reboots hitting Hollywood in two years' time? Columbia Pictures have just announced Inferno, the third Robert Langdon film starring Tom Hanks, for December. That's the fifteenth such film to be announced so far.

• The Fantastic Four (reboot)
• The Penguins of Madagascar (spin-off)
• The Avengers 2 (sequel)
• Star Wars Episode VII (sequel)
• Terminator (reboot)
• Independence Day 2 (sequel)
• Pirates of the Caribbean 5 (sequel)
• The Smurfs 3 (sequel)
• Ant-Man (spin-off)
• Hotel Transylvania 2 (sequel)
• James Bond (sequel)
• The Hunger Games: Mockingjay Part II (sequel)
• Inferno (sequel)
• Finding Dory (sequel)
• Kung Fu Panda 3 (sequel)

I'm pretty sure that's not all of them either - for one thing there's not a Warner Bros picture in there yet, so we can safely assume they'll be racing to slot Man of Steel 2 somewhere into the summer. You have to wonder if Hollywood has left any room in 2015 for original ideas.