Is Content Marketing Traditional Advertising's New Rival?
There is no "traditional advertising" anymore. Think about your life. How many magazines, books or anything non-digital do you read these days. If you aren't 90% down from ten years ago you are an outlier. The only "advertising" that is left is sharing everything you know in the hope it will help someone somewhere and they will make a note of it.
BUT, for the sake of fun, let's review this infographic that shows yes indeed content marketing is the rival of something that doesn't exist any more EXCEPT as an augmentation to content marketing. If you are creating ads to support your content marketing congratulations you get the NEW THING.
IF you are creating "traditional advertising" thinking it alone can do anything I say good luck with that and be sure to send a postcard from where you end up :).