It's almost 8 months of 2018 and we have not seen any reasonable hikes for the altcoins,
It was only Ethereum that hit a good value of almost 1.4k$ in the beginning of the year . Since then it's pretty dull.
Forget overtaking can any ALTCOIN ever reach a value near Bitcoin.
Yes leave your imagination buddy. No one other altcoin cannot overtake Bitcoin. Only we can expect some reasonable price increment. It's impossible to cross Bitcoin. Forget about it.