In effect this is what Tourweaver does when you publish to _auto
The _auto html file dishes up the correct tour.
You "could" make a totally separate html5 tour and replace that version in your _auto/html5 folder. Just be sure that the html file names match. Both in the script of the _auto html code and the landing html file within the html5 folder. I.E: index.html in the code and index.html within the html5 folder as I previously explained.