[Non-Sequitur]

I think it's your turn to paste in the actual text of the Constitution which covers a "change of status" of an existing state.

Article IV, Section 3: "New States may be admitted by the Congress into this Union; but no new State shall be formed or erected within the Jurisdiction of any other State; nor any State be formed by the Junction of two or more States, or Parts of States, without the Consent of the Legislatures of the States concerned as well as of the Congress. "

Article I, Section 10: "No State shall, without the Consent of Congress...enter into any Agreement or Compact with another State, or with a foreign Power..."

Those two clauses prevent any changes, no matter how minute.

Hint: If the language is not explictly in the Constitution, as an enumerated power of the federal government, then such a "change of status" is a right reserved to the state, per the 10th.

And where is the term 'explicitly' found in the Constitution?

[central_va]

without the Consent of the Legislatures of the States concerned as well as of the Congress. "

West Virginia is problematic.