DOGE is still breathing because of its enormous community and it is a living proof that cryptocurrencies does not need gimmicks to succeed. Only a troll can say that Litecoin is feeling threatened by some other coin/asset/token. Even if LTC completely dies, it will still be one of the best, because for one simple reason - it distances itself from the "tech race" and focuses on adoption. If Litecoin dies it would not be, because it was "not developed" (from the tech side), it will be because of the people's hypocrisy.
EDIT:
I'm skeptical that adding CT will have adverse affects to LTC on a socioeconomic level.
CT is only part of the solution to privacy/anonymity.
Let's face it, the recent effect in anonymous coins is mostly because of hype (or over expectations). I do agree that it would not really affect LTC's price (unless certain groups decide something else). Bad thing is that in the past 2 years cryptocurrencies are restraining from adoption more and more. We have a new "gimmicks race", which probably leads to nowhere.
I do agree that in altcoins there is always has an ongoing "gimmick race" coming from most of them. But there is another way of looking at the situation. Without participating in the gimmicks race and pushing the development team into improving their respective coin projects then they might be left behind by their competitors. I believe if litecoin does nothing then it would be threatened to become a forgotten coin and die slowly. I know litecoin is still in a good position even if they do not participate in the gimmicks race but they might be in a better one if they do.
It may die, because people are for the "coin of the day" and cares about their $5 profits. I've said that more times than a 60-year old priest said "Amen".
Doge is not mostly dead because it was merge mined to litecoin. Hardly a "community" backing it if it needed litecoin miners to bail it out.