If you are talking about the invested altcoins which had been dropped severely then definitely it is going to be only one option and that's to hodl your assets until they get back to the normal prices or you hit the BEP and cash out your money out of altcoins if you are not able to hodl further or doubt the project itself.

However, if you are talking about the coins which are in blood bath right now and have some good prices in the past then possibility of that altcoin getting hiked to those prices and above increase a lot more. However, this would be in comparison with the coins for whom there is no historical movement at all. Apart from this, you can be sure about the altcoins which are on the correct roadmap but they have fallen due to the current market situation and bitcoin downfall as well. Considering most of them are paired with bitcoin thus whenever bitcoin falls they will fall as well.

That would be temporary and one can easily make profits out of it.