There is no quick fix to the unconfirmed transactions or fees

Apart from the obvious thing that it's the same problem not two different ones, quick fixes always lead to bigger issues than can't be fixed.

so the situation will most likely keep turning worse at least until autumn 2018

What happens in autumn 2018?

In my opinion BTC is just starting it's bigger downwards spiral / bear market.

Fortunately this is only your opinion.

I wonder which whales have their coins loaded and ready to pull the trigger in case of a flash crash.

You're not a real whale if you are so easily impressed by a dip and sell all your coins.
Whales doing this end up being cute harmless dolphins.