Would a full-length flight-deck refit also improve the anti-aircraft guns?
Short answerProbably; twin 4.5-inch weapons or a stronger 40 mm battery are plausible upgrades.
NotesArmament work would be a natural companion to structural modernization. The original single-gun battery would not have remained the only defensive armament. Twin 4.5-inch mounts or a larger 40 mm fit are offered as plausible alternatives. The exact scheme is uncertain, though leaving the anti-aircraft armament untouched is unlikely.