What would a 20,000-ton, firepower-focused modern cruiser look like?
Short answerIt would be a modern Aegis strike cruiser with extensive VLS capacity, whatever battleship or cruiser name were used to win approval.
NotesAt this displacement the ship is a large command-and-missile cruiser, far beyond an enlarged destroyer. Recent battleship branding is interpreted as another attempt to sell Congress the long-desired strike-cruiser capability under a more politically attractive name. Historical nuclear cruisers and their successor studies show the continuity: endurance, sensors, and a large VLS battery matter more than the label on the hull.