I'd argue the exact opposite and that is POW is dead (except for Bitcoin) and POS is the future. Look at all the innovation with POS coins: NXT, NEM, Crypti. Where is the innovation with POW? Litecoin? Darkcoin? Titcoin?
you are probably right when it comes to the other POW coins.
Does anyone still believe that purchasing a machine for thousands if not tens of thousands of dollars to mine POW coins is still profitable?
look at the escalating hashrate. certainly someone does.
Furthermore, as energy costs and hashrates continue to rise, fewer and fewer people will get involved with POW mining.
orders of mining equipment are still in high demand. hashrate is still escalating. when can we expect this participation to die off, please?