it does not rule out the possibility, but we need to know, if there is a cryptocurrency that can take over bitcoin it will take 5 to 10 years. How come, since the arrival of bitcoin he has become part of our flesh and blood .. while saying new crypto as a substitute is not easy, the point is bitcoin is still bitcoin, as a single and parent. as for innovation in growing the bitcoin revolution in the future.
Best cause is that the bitcoin have max security and decentralize above all else. that is the main cause what i see as no other currencies beaten Bitcoin, furthermore the bitcoin have transparency and Suitable for Multi-Purpose Uses.