Do you mean that the price will be more than $5000 or $10000 just like the OP is saying?
Of course that it would never touch those rates, ethereum is only increasing because of speculation, they are able to "print" as many ethereums as they want.
if tomorrow you wake up and you see a max circulation of ethereum above 100000000 of coins, then i would not be surprised about it.
I think Ethereum isn't ready for this price. Developers have a lot to do to increase scalability. In the future the price will be much higher!
it is a good crypto, it deserves to be on the top 2, but it needs to fix some issues before making a brand new pump.