Just kidding. Disney has not announced a D23 tour but they should. Think about it. Last year if you couldn't travel to LA you got left out of the best D23 stuff. If Disney did a D23 tour to the major cities a lot more people could join in the fun.
Granted you cannot do something on the scale of the D23 convention in every city. That is just not possible. You could do something on a smaller scale that would be fun. All you'd really need to do to get people going is do a seminar of what's coming, a few door prizes, and roll out some characters.
Don't plan on this happening this year. Disney doesn't have the best record of flexibility. The last few years they've really seemed reactionary instead proactive. I also believe that if they didn't think of it, it's an awful idea. Then they do it when no one is looking.