It's not surprising that a production is opening as soon as next year, Lion King opened in Tokyo a year after Broadway followed by the London production the year after, Tarzan opened in the Netherlands a year after the Broadway opening and ended up outlasting it and IIRC Beauty and the Beast had international productions within a year of the Broadway production opening.
Disney are starting the international rollout of Aladdin given it has established itself as a hit, I imagine we'll see a West End production by early 2016, the London Palladium is one of the theatres Disney are considering for the show.