I'm afraid that if the tour was cancelled, it's because Paul is not sure if he will want to tour next year and doesn't want to be bind to it.
Said that, I think the fair thing would be, if he tours, try to play in the palces where he was supposed to this years.
I'm very sad now, because I was going to take my daughter to see him and she may have lost her only chance to see a Beatle live recently after she had asked me if she would never bee able to see them. It was a big happiness when I managed to get some good tickets for taking her to see him and now we lost that chance. She's angry.
I understand the cancellation, but I would not understand, if he tours again, to tour to a totally different part of the world before the places where he was supposed to go.