Elon Musk is just one of the reasons that made the Dogecoin price increase, as long as the community supports the token just like SHIB then it's not impossible to keep growing in upcoming years. If a problem like outdated blockchain technology occurs and Dogecoin needs a better blockchain that supports more transactions then the community will have the solution since the Dogecoin community is not small one. The one that makes a token fall is there are no utilities so a token which not has enough utilities won't come back to its previous ATH.