Would a Tiger built with triple turrets remain in service during World War II?
Short answerPossibly: larger 13.5-inch triple mountings could permit a later 14-inch rearmament, and larger ships would change the treaty baseline.
NotesTriple 13.5-inch mountings would make this counterfactual Tiger larger than the historical ship. Their size could permit replacement by twin 14-inch mountings, with triple 14-inch mountings also raised as a possibility. The larger generation of capital ships would in turn imply larger treaty tonnage allowances. Those conditions could keep Tiger in service into World War II.