Yes BTC can go even much higher but we have to be aware of some of the challenges as well.
A single unfavorable announcement can drive the price much lower like what happen to all coins after south Korean thing.
With growing demand for other platforms such as ETH, ADA and NEO there could be a shift of market dominance which may lead to slower price increase even to lower than the current price.
ppl are becoming interested in full ALT coins instead of fraction of BTC this mass Altcoin adoption may lead to the slowdown of BTC.
Having said that BTC will till probably be the king