Yeah i believe ETH will rise up again soon. For what you said i think not at all do that or have such thoughts like that, maybe they just in need for something at that time that make it have no choice to not to sell it.
I think market will rise at the end of year, but there no guarantee that it will happened. If that's not happening so we need to wait longer till the price is high again.
I think it's time to wait, cause if you sell that's mean you loss your profit right? So just wait until the market is going better or your token price is rise up again.
No, it will not make a bank disappear just because cryptocurrency. Cause bank already have their function to make your money save and maybe the bank will launch a cryptocurrency too.