Litecoin is not dying that easily simply because it is a very old coin that has succeeded this long and more importantly because it has a couple of good developers who are working on it hard.
but also it is not dying because other altcoins are practically just as useless as LTC without that much to offer so there is no alternative to replace it with.
especially if we see who is the developer of Litecoin, that's charlie lee, where he is have huge name in crypto community and ex Coinbase director.
Litecoin still surviving and one of the old coin still live untill today beside Doge, Dash and etc