I never really understood the CC thing.
I hope New SMB is just as difficult as SMB or SMB3: those provide a challenge, but they're not overly easy. Also, I hope there are mid-world savepoints: completing 10 levels without saving isn't going to be easy..
Edit: Also, this is off-topic, but I can't find anywhere else to put it. How come I can't post in most of the forums, unless I reply to another post?