Although, it might happen I do not think so. The main reason is a philosophical one. Right now there are crypto's that surpass the tech of BTC, yet they don't even come close to BTC. BTC has become a symbol. Before Ethereum or even Litecoin when you hear crypto currency the first thing that pops into your head is bitcoin. Bitcoin will represent all of it and will always be valued as such. It started the movement and out of respect for it people will value it even more. It is a reason why it is considered the gold of the industry.