Disney Fantasy underwent an extensive technical and passenger-area refit at Damen Shiprepair Brest following its 2025 European season. The principal efficiency project was replacement of the ship's bulbous bow with a newly fabricated, hydrodynamically optimized structure. Damen also completely blasted the hull and applied a biocide-free, low-friction silicone coating, upgraded propulsion and maneuvering systems, and performed class inspections, maintenance and other technical work.

Passenger-facing changes included a two-level, approximately 2,030-square-foot Fantasy Tower Suite inside the forward funnel, themed to Fantasia and Sorcerer Mickey. A Hercules-inspired Concierge Lounge was introduced, Ramone's Cantina joined the pool-deck dining options, Edge moved to Deck 5, and treatment and thermal facilities in Senses Spa were refurbished. Quiet Cove Pool and its whirlpool were refurbished, and extensive carpet, tile and marble replacement was carried out in guest areas.

The ship returned to passenger service with a westbound transatlantic sailing from Southampton on November 3, 2025.