New sites that provide a better user experience have every chance of taking over the older domains. The older domain should continue to evolve and adapt every time. Just because you are a domain that has been established and has been from quite a long time does not mean you will automatically keep ranking.
For older domains it is necessary to take a fresh look in your layout in order to provide the best user experience. Something that is fresh and is of value to the end user matters more to Google as compared to the one that has grown stale and has not been updated from a long period of time.
Some of the new domains have fantastic designs, people might prefer migrating to the newer domains leaving the older domains.
Have a look at the video below:
Also See:
Google Moonshot Changes
Anchor Text Variation and Seo
5 Points Every Seo Must Follow
Importance of Backlinks in Seo
Site Wide Links
Syndication is a Valid Way to Get Links
Google Pushes for User Sharing of Sites
Where to link to the original source in the article?
Links from article marketing sites
Importance of Backlinks in Seo
