Maybe I'm just too old (30), but I had exactly zero excitement while watching that preview. It seems like people get excited whenever anything SW related is "dark" and has characters striking cool poses with lightsabers (that Old Republic preview comes to mind).

I seem to recall the Clone Wars era being done to death before Revenge of the Sith was even released in theaters. This just looks like more of the same, except that events are getting SO big (Maul coming back to life) it just seems absurd that nobody will ever mention these events in RotS (not that I'm a big fan of that movie).