Well, we never know exactly what is the plan Elon Musk after this and what he can do for Dogecoin, might this will be another way to manipulate and help it grow up. We can't underestimate his influence, can do impossible things because of his money and make use of this platform to hype this project again. But, this never assures that it boosts the future of Dogecoin and I don't also think he could hype Doge forever, it still has an end.