Its still there, back in Jan-March of this year there were walls spanning all over Main Street as well as the castle forecourt as DL replaced the pavement and added curbs to different areas one of the areas that never had a curb for 53 years was directly infront of the castle.
During the 50th Disneyland opened , a lot May 5 brought, Parade of Dreams, Block Party Bash, Remember...Dreams Come True, Buzz Lightyear Astro Blasters, Disneyland the First 50 Magical Years, then in July Space Mountain, and in Jan 06 Monsters Inc.at DCA.
For a major attraction for the 40th I really dont see it happening at this point as it would need to start construction soon, Star Tours 2 will be touted no doubt. It will be really sad if there isnt a brand new parade or fireworks. Im hopeing for that, if DL can put on 4 firework shows a year (no extra admission) then WDW can do with at least one new show.