The price of altcoins will recover someday, but no one knows when it will be, but you should not rely on the same numbers as in 2017, because investors already do not want to invest in cryptocurrency due to the fact that the fall has already dragged on too much, but and of course, top altcoins will be able to show good growth, but altcoins that are not well known to anyone will most likely either not increase in price or will grow but very little.
We are in a dangerous state right now, because I believe EVEN if the alts are going to recover their price someday later. There will be a lot of them who are going to close their project or announce their departure because of this massive dump. Even I do not really have any faith in holding alts because it shows me the time when we started our massive dump a year ago. After we were reaching our ATH, some project announced their bankruptcy and fired all of their staff. Today, it looks like that.
Closing illiquid projects and leaving them on the market is the best thing that can happen for the cryptocurrency community, from the point of view of cleansing from slag and freeing up excess cargo. All this scam only slows down the development of the market and really cool and developing projects. Yes, such cool projects are among all this scam collection. So choose coins for investment only on the work done by the team, and not on empty statements.