Most likely, we will not be able to see Dogecoin at the top of the cryptocurrency top. This cryptocurrency is very far behind the others in its functionality and popularization. And the statements of famous personalities looks like a bought PR.
It depends on which ranks you will consider as top of crypto currency. Dogecoin ranked in the top 20 on coinmarketcap.com for several times, so I think it should be called as top crypto currencies, due to its total marketcap, its volume, and its long history in crypto.