Probably in 2020 there will be an altcoin much better than btc which will take its place.
You don't understand fundamentals. In order to be successful and widely accepted cryptocurrency it takes TIME and requires BIG (trillions USD) market cap.
Bitcoin will have the longest history (11 years) and will have biggest infrastructure and will be proven as safe haven.
No shitcoin will be able to accumulate bigger market cap and gain bigger trust without history (trust is building step by step, looong time).