I'm not sure on the 'redundancy' of Dooku due to what happens in Ep3 - apart from his death, we don't know the details of the on-screen stuff of what's going on yet.
That's a pretty big jump in conclusions to the main reason of the Emperor smiling at Vader in RoTJ is that it reminds him of getting Dooku to resign from the Jedi (did he?) all those years before.
I agree that the events in EP3 could make it quite difficult for Magnolia to carry on the consistancy of Dooku - though it should be interesting to see how he does it - though it all depends on just how heavily Dooku features in the final cut of Ep3 too...
Hi & welcome to the boards.
anyone know if millenniumfalcon.com is still down?