I am back. Was able to find a flight on a different date to Paris, so now we are into Paris and returning home from Amsterdam. I wish we could do Copenhagen, but with our new dates we lost a couple days. Thanks to advice I have received previously, here is what I am thinking.

We will figure out what all we what to do in Paris and stay there the appropriate number of days. Unless I can talk my wife out of it, one of those days will be wasted at Disney. Then we will take the train to Brussels. I am thinking 2 days there with one of them being a day trip to Bruges and/or Ghent. Then take the train to Antwerp for a day and then on to Amsterdam for the remaining days.