Yes, I believe that some altcoins have a really bright future ahead as these coins have a wonderful development team. I think ETHEREUM, NEO and OMG are coins which will surely show an amazing growth in future.
Yes, i think that some coins have a good future, but it needs a good team and a good idea like paying with a coin for a taxi. This is for the future and it helps the economy of the country.
It also helps the coin to grow more and it will have then more potential to grow. Some coins just fall and rise thats it.