I tried to put all the information I found about the "Happiest Celebration on Earth" together and made a list with all the new stuff going on around the world for the event.
Please do not hesitate to update the list with everything you heard or read.
Here is the list:
Disneyland California:
1) PARADE: Walt Disney's Parade of Dreams
2) FIREWORKS: Remember... Dreams Come True
3) EXPOSITION: Disneyland - The First 50 Magical Years
4) ATTRACTION: Buzz Lightyear Astro Blaster (opens in May)
5) ATTRACTION: Space Mountain (opens in July)
6) DECORATION: Sleeping Beauty Castle
California Adventure:
1) PARADE: Block Party Bash
Magic Kingdom:
1) ENTERTAINMENT: Cinderellabration (from Tokyo Disneyland opens in May)
2) DECORATION: Cinderella Castle
Epcot:
1) ATTRACTION: Soarin' (from California Adventure opens in May)
Disney Studios:
1) ATTRACTION: Lights Motors Action (from Disney Studios Paris opens in May)
Animal Kingdom:
1) ATTRACTION: Expedition Everest (opens in Fall 2005)
Tokyo Disneyland:
1) ENTERTAINMENT: The Happiest Celebration on Earth (opens in Summer 2005)
Toky Disney Sea:
2) ATTRACTION: Raging Spirits (opens in Summer 2005)
Disneyland Paris:
1) FIREWORKS: Wishes (from Walt Disney World starts July 2005)
2) ATTRACTION: Space Mountain (reopens 9th April 2005)
Hong Kong Disneyland:
OPENING during the event (Fall 2005)
Please do not hesitate to update the list with everything you heard or read.
Here is the list:

1) PARADE: Walt Disney's Parade of Dreams
2) FIREWORKS: Remember... Dreams Come True
3) EXPOSITION: Disneyland - The First 50 Magical Years
4) ATTRACTION: Buzz Lightyear Astro Blaster (opens in May)
5) ATTRACTION: Space Mountain (opens in July)
6) DECORATION: Sleeping Beauty Castle
California Adventure:
1) PARADE: Block Party Bash

1) ENTERTAINMENT: Cinderellabration (from Tokyo Disneyland opens in May)
2) DECORATION: Cinderella Castle
Epcot:
1) ATTRACTION: Soarin' (from California Adventure opens in May)
Disney Studios:
1) ATTRACTION: Lights Motors Action (from Disney Studios Paris opens in May)
Animal Kingdom:
1) ATTRACTION: Expedition Everest (opens in Fall 2005)

1) ENTERTAINMENT: The Happiest Celebration on Earth (opens in Summer 2005)
Toky Disney Sea:
2) ATTRACTION: Raging Spirits (opens in Summer 2005)

1) FIREWORKS: Wishes (from Walt Disney World starts July 2005)
2) ATTRACTION: Space Mountain (reopens 9th April 2005)

OPENING during the event (Fall 2005)
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