So comparing the old and new websites, the Garden Market, Rooftop Bar, Sushi Ema, and Teppanyaki Fukitei remain as they were. Whereas before there was the Gallery Kitchen and the "9 Dot Bar" (you knew that name wouldn't survive the rebranding), there is now just "The Garden Brasserie & Bar" Can't tell if they combined the space of both into one or if the Gallery Kitchen area now supports both the restaurant and bar, with 9 Dot Bar area becoming the new club lounge as you suggested. Or maybe some they reportioned everything to give the club lounge some combination of both the old areas?

They've also added a free shuttle to Shin-Urayasu station, so at least there's now some way of getting there by mass transit besides hitching a bus from Tokyo Disney Resort.

There used to be laundry machines on every floor, but those are now replaced by "Laundry Services". Also no mention of the convenience store that used to be located within the hotel.