I just hope that what you said is true. But it is not the alternative coins in the cryptocurrency market that will steal the show from bitcoin but it is the fiat digital currency. If somehow bitcoins will survive the possible threat that these fiat virtual currency will bring then thats the time that bitcoin has proven that its a currency that can never be replaced.
I strongly agree with Xester's opinion. Bitcoin nowadays has nothing to fear from other cryptocurrencies because is the pioneer and most people know only this and no other coins. The real rival are the fiat digital currencies many countries like as UK, China, Russia are experimenting using a form of centralized blockchain technology. Moreover some countries legalize bitcoin, USA and recently Israel, not as currency but as property what ever that means. Goverments and banks till now they keep a 'wait and see' strategy but will not forever cross the fingers waiting the end.