Ethereum.now has the advantage since it is the next coin to bitcoin and there are technical aspects also that ether has the advantage compared to bitcoin
Nowadays no one cares about the "technical" advantages that X or Y coin has over Bitcoin, the majority of people entering the cryptocurrency market are looking to make quick money and profits. So, in the current state of the market, having an "advantage" over Bitcoin doesn't mean much...there are coins that have way better tech than btc (and even ETH) yet not many people seem to be interested in these cryptos.
Now is it possible that ether will be like bitcoin?
I'm not sure what you mean with "
be like Bitcoin", but whatever it is, the answer is no.
Its price will also move high as bitcoin did and investors will move from bitcoin to ether?
A smart investor wouldn't just invest in one single cryptocurrency like BTC and then move to another coin. Spreading an investment among several coins (for example, BTC, LTC, ETH, NEO, etc) in a portfolio would be the optimal decision as it will you minimize the risks in your invesment.