If I'm not mistaken, the mention of the tours did not include the times of when it would occur only that it would be something the new king would be doing after the present queen passes away.
Reconsidering things, perhaps a tour of the countries of the UK in the interim between the funeral and the coronation may be a good thing to do. It kind of fits in with the continuity of the monarchy as we've seen said quite often "The king is dead. Long live the king!". I'm sure it's not to be planned and executed during the time immediately following QEII's death. They probably have the timeline figured out to cover things from the moment the Queen passes until the minute Charles is crowned king.
To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment. ~~ Ralph Waldo Emerson ~~