In the future, we may end up with an array of alternatives, with varying functions and limitations. On the other hand, perhaps well find it is enough to have a single decentralized solution like bitcoin, which anyone can access, be they Pakistani farmers or multinational banks.
We cant know for sure, but its very likely that the technology bitcoin inaugurated is here to stay.
Maybe not BitCoin exactly, but the technology of the BlockChain is here to stay.
The bitcon is here to stay if there is no big split in the community. I hope any problems can solved properly, especially the block size increase.