We had the same thought when we were setting up our Community user tours. Something you could do as a workaround is use the final stage of your tour to prompt the user to go to the next page, either by selecting the item (for example, a menu item) or by providing them with the URL in the tour. Then start a new tour on the new page. It's messier to build and isn't exactly what you're asking for, but it could be a similar user experience. 

Let us know how you get on!

Rachel