Elon Musk may love Dogecoin but it doesn't mean he's the only one capable of such. Dogecoin has its own community and so has some use cases as a payment solution. So, yes, it can still pump without Musk's intervention. After all, it has doing that before Mr. Musk's intrusion
Yes, nowadays many think that Elon is the only strength of the doge, and is too dependent on him, it is necessary to know that together with the existence of Elon, doge is able to develop very impressively after Elon openly tweets about doge, even though doge has their own community trying to develop it.
That's why Elon chose Dogecoin. an asset that is cheap but has a strong market and community support. he already took a lot of profit from dogecoin. believe me, this is just a game run by Elon to manipulate the Dogecoin market. he has been very successful with choosing the right assets.