I don't think it's going to happen yet, but there may be a good project, if it happens, it's unprecedented, or a cross - time innovation that is worth looking forward to.
I do not know who will be the new king and so now there is still no altcoin that can replace bitcoin although Bitcoin often decrease and difficult to be replaced or taken over then in the coming year there will be altcoin that can replace bitcoin and become a new king
I completely agree with your opinion. I think no one can replace the BITCOIN coins because Bitcoin is a potential coin and many are of interest to many people and also despite the often falling price but I think it is very difficult to replace with other coins. although there is a good ALTCOIN, Bitcoin's position will never be replaced.