ETH: i highly doubt it. the pumping team has proven to be very powerful but don't forget that currently there are 90+ million coins available  and in 3 years there will be 400 million coins in circulation (more than 27000 ETH is created daily!!!) and nobody can pump a coin with that much supply to anything above 1-10 dollar. look at doge if you don't believe me.
and if they finally cap it and change the POW it will probably die after a much shorter time because many will dump and leave it since it is no longer profitable for them.