i believe it's not dead yet. the doge community is active and doing good since a few years ago. then elon musk came and made a high impact for doge price. i think the doge community can handle it even if elon musk is gone.
I think you overestimate Elon's current influence on DOGE. His words don't worth much now and until he makes it as a payment method on Twitter or something like that DOGE won't see a big pump.