Treaty survival for an early US battlecruiser

How might the US Navy use a battlecruiser derived from the Wyoming or New York class, and how long could it last?

Treaty limits might preserve the scouting design into the Second World War, where a surviving fast gunship could find work in campaigns such as Guadalcanal.

The hypothetical American battlecruiser derives from Wyoming- or New York-era capital ships and is associated with scouting designs. Washington and London naval treaty limits could keep such a ship in service longer than otherwise expected. It might survive into the Second World War or even beyond it. Guadalcanal is raised as a possible setting for its employment, while the precise design and the implications of that battle remain undeveloped.