That's only part of the question. If we ask "what is a 4e style character?" then we get closer to the heart of the matter.
That's the problem. You cannot transfer the "heart of the matter", as you call it, somewhere else. What you are referring to is not a separate thing surround by more peripheral elements in the system, but the emergent properties that result from the various elements in the system interacting.
Therefore one cannot have a 4e-style class in Next. Of course I can make a class that curses someone, there is in fact: Avenging Paladin. But still, this is not the same. You can do this with every other aspect you listed or I listed or anyone might list. Putting them into Next, will still not result in 4e.