Both ETH and EOS have a strong future, but over time, I do see EOS as replacing much of what what originally built on ETH.
I plan to migrate ETH into other kinds of investments (EOS, real estate) but I think ETH will go up a lot before the masses realize it's going to be replaced by EOS. EOS is so far superior, it will cause a boom at some point, but it's going to take a while...