Oh well, I'm not a C.S. Lewis fan - I didn't see either Chronicles movies, thus whether a third one is made or not is of little concern to me.
I do get Computer Graphics World magazine, so I get to see the details on the special effects and 3D for most of the upcoming movies, including the Narnia films. So its not like I am unaware.
But then I didn't see any of the Harry Potter movies.
Only the Lord of the Rings was a must see, for me, so that's about the only fantasy movie series that I've managed at all in the last 10 years of movie watching. I'm still wondering if the Hobbit is ever going to be recreated, in the same vein as LotR, that's my only small hope.