I doubt that , however there might be a currency that will do very well more than bitcoin , e.g in fiat world where you have different currencies doing very well
Time will come in the future that bitcoin will not be supported by the people but we should not wish for that to happen. What we need now is to support bitcoin with the best that we can and to make this more progressive, if something comes up to replace bitcoin then I will just jump as long as it's profitable.
you can not look only on the profit. the technology is whats gives a coin its value. if you have a bad or corrupt technology you can still make money, but on the long run you will fail. so look out for value not profit. different coins might bring a different value and coexist.