Litecoin was a big thing in 2015-2017. Its not now. Its slowly dying.
The reason why it slowly dying is because of Charlie Lee public declaration of selling all his holding and major investors decided to sell their holding either to avoid exit scam since the coin creator decided to sell his holding.
I don't see a reason to have it. Of course it may change ... maybe "safe haven investors" that will came here for bitcoin will try to search a "crypto silver" and go for litecoin as for years it was considered a digital silver for crypto community, but I doubt that.
If we consider the concept of the coin, theres a reason to have it cause it was a lite version of Bitcoin and thats why the crypto community considers it to be crypto silver until Charlie blows it. But the project teams have developed MimbleWimble which will make the coin to be an option for privacy transaction.