NEK offers all cubase features

I score using CB pro 8 and thinking of getting Nuendo 7 + NEK. Does the NEK option offers all the midi functionality of CB pro 8. Will i be missing anything by going Nuendo/NEK ?

You will need to learn to be patient, though. N releases are usually half a year after the initial release of the music related features in cubase.

…but you also benefit of that extra time in the form of an extra 6 months of debugging before you inherit new features in Nuendo. It helps avoid the annoying nicks and scratches typical of the cutting edge. A win-win IMO.