None of us thought Dogecoin could get where it is.
Looking at it now, I think they could push this anywhere.
$10 - $15 even
Trillion dollar marketcap? Sure, why not.
Everything can happen but in a perfect time. 10$ -15$ is very far from reality for now, but not impossible. If it happens, BTC should also go up in order not to be replaced on the top 1 rank.