Could World War II warships still serve today?

Could any World War II-era warships have been modernized to serve today?

Some could have lasted much longer, but hull fatigue and life-cycle limits make present-day active service unlikely.

Some large World War II hulls could have remained useful for additional decades if placed in reserve and preserved carefully. Modernization could replace weapons and machinery, but it could not erase every effect of age. Structural fatigue and the cumulative life of the hull would eventually become controlling limits. The answer therefore distinguishes extended preservation from indefinite active service.