True sequel to SMW? Nope, sorry, not seeing it. In fact, it's not a patch on SMW in terms of level design, music, sound f/x and especially balance of difficulty vs frustration, and there's barely any fun factor whatsoever because of it. And I say this as I love SMW and SMB3, they are nigh on 'perfect' 2D Mario games. NSMBW lacks heart.
Can you tell that I'm not impressed with NSMBW?