No, it won't be Monero...

Since nothing lasts forever it is of course possible that Bitcoin will be replaced some day. The question is it likely to be replaced by another cryptocurrency or will it be replaced by an entirely new concept? I think if a new system replaces Bitcoin it must have highly significant advantages over Bitcoin that come close to the paradigm shift that Bitcoin represents compared to the existing fiat money system.

The reason why I don't believe that Bitcoin is replaced easily by another cryptocurrency is its significant network effect that is the result of having the biggest user base. Bitcoin had a first mover advantage. That advantage can not be easily reversed.

ya.ya.yo!