Ulduar will be the same as malygos don't expect more.
However I don't really think raids have got easier, the players in general have just gotten better and/or we now have a spam of addons to help. Try playing without DBM/Bigwigs. without your raid UI's, without grid or decursive and the game is similar to pre one button decursive days, this was the challenge you imagined was there, if you put mc bosses in the game now without seeing them before you would lol heavily and faceroll them. A boss where all I have to do is dispel the raid? lolool, All I have to do is turn the boss away, break fear and tranq shot it? hahaha.
The other aspect is that with 25 you don't have to take 15 of the idiots you would normally have taken to 40 man. People have often said that the hardest raids were the 'get 40 people with brain' raids, the real raids were a lot easier.