its very possible for ethereum to reach that price my friend
but, it doesn't mean if we should move our bitcoin to ethereum buddy, not all but maybe a half
I guess it will happen but there is no exact time when it will happen, we know that ethereum growth was its always depend on the bitcoin movement, especially at this moment ethereum isn't good for transactions due to the high fee like bitcoin.
You can't change bitcoin enthusiasts mind, they keep holding bitcoin whatever happen to the price because these two coins that you mentioned is good for storing value.
thats why i said it doesn't mean if we should move or change our bitcoin to ethereum mate
because i also agree with you, if we believe in cryptocurrency we should have bitcoin and ethereum in our wallet as long term investments
and yes, there is no exact date for eth to reach $5K