Litecoin, Bitcoin, and possibly xrp.
Litecoin is much faster, cheaper to send, way undervalued, and will become scarce as institutions buy it up. It also is easier to evolve with a collaborating development team and foundation.
Bitcoin, due to being the first one and recognizable, being used as a store of value as insecurity with fiat increases, etc.
XRP because if it is adopted by banks, despite having billions of coins, could become a mainstream tool for banks, etc.
If the whole cryptocurrency thing will continue throughout the years, for sure Bitcoin and Ethereum will surely be still around after 10 years.
Probably the higher the market cap the higher the chance that the cryptocurrency will stake after 10 years, so if you look in the coinmarketcap the top token will remain for sure.
Litecoin will probably remain because it's already an established coin, I just don't like XRP because it has recent issues that have a big effect on it and being centralized.