Closures at theme parks are one of the things that come with the territory of being a fan. Not only do favorite attractions get replaced with something new from time to time, but every attraction has to close down for a while regularly for refurbishment to be sure that things don't break down more catastrophically.
The same is true for theme park resort hotels. Disneyland Resort's three hotels need to be refreshed from time to time so they continue to feel new, and that includes their restaurants. The Napa Rose, the finiest dining restaurant you’ll find at Disneyland Resort, has been closed for months for a major overhaul. It was supposed to reopen soon, but now I’m utterly depressed because the reopening has been significantly pushed back.
The Grand Californian’s Napa Rose Reopening