litecoin has always been active and it has been around for nearly as long as bitcoin. and many even call it silver to bitcoin's gold.
it is obvious and normal that these days the news and activity about litecoin is increased and that is because of the price rise, but litecoin is one of those altcoins that has a good developers team and has been keeping a very good track record and price over all these years.
the USD value has actually been very stable for a long time.
and it may be hard for you to believe but it will never replace bitcoin. but it may become big to overcome all other altcoins though.
p.s. i don't find anything particularly interesting about that article