i think its partly because the rpg playing audience has dwindled. what we need is for a new generation of gamers to come in that likes the same stuff as us. and sorry but i just cant agree that games havent changed. call me the next someone makes a wild arms'esque rpg or a game similar to skies of arcadia or grandia 2.
i think the FFX system can work great if they expand on the targetable enviromental objects. also there was something in one of the wild arms games i thought was cool where you can lower an enemy's armor by freezing it than hitting it with fire? or was it the other way around.