The official plot coming from the C.S Lewis is but compelling and sounds exciting but is Will Poulter fit for a lead role on the 4th installment? He might have done well on the Voyage of the Dawn Treader but with his incessant blabbering throughout the movie I'm quite not moved by how his character will develop on his own adventure.
I know 20th Century Fox and Walden Media are considering a 4th installment for the Narnia franchise. But with the Pevensie children out of the franchise it just doesn't feel right.Maybe they can still appear, that they'll know about what Eustace's doing in Narnia.
Chronicles of Narnia 4: The Silver Chair is an exciting movie to watch! I believe in that.