well, most sites today still consists mostly of pictures and text, and probably will for some time to come. Of course if you want to see flash animations/applications or web-tv on an ordinary amiga then you can forget it (with some exceptions).
But also consider this; Javascript is such an inadequate standard that web-developers have to take precations when using it, because Javascript is supported differently in dfferent web-browsers Javascript is not what I would call a relible standard (such as xhtml). Of course CSS have this problems as well, but is generally better supported by most web-browsers. Also, considering the high bandwith costs of web-tv and the fact that Flash is not a standard component in any web browser and is also copywrighted by adobe, makes ordinary text and graphics plus HTML the dominating web standard for some time to come. So I guess the web won't evolve as quickly as some people want it to.