[Oni]

html5 cant replace flash 100%. The things that html5 will replace are those things that flash were forced into compensating for because of html's lack of compliance such as video players.

until html5 uses a strictly typed OO programming language with a huge toolset of powerful libraries and the ability to render with the GPU for 2d and 3d games running at high framerates it cannot & will not completely replace flash.

Basically this. HTML making up for the stuff it couldn't before. Flash is bad now and should only be used for certain things.