The last worshipers of Odin and Thor.
National Museum of Denmark claims there are 500-1000 practicers in the country but couches it by saying "The modern belief in the Norse gods is not a direct continuation of the beliefs of the Vikings. It is more of a revival and reinterpretation of the old religion, as there are so few written sources on the subject. These mostly consist of brief pieces written by Christian monks or short accounts in the sagas."
Nationalmuseet.dk: The old Nordic religion (asatro) today
Is this "New Age" or a genuine "Revival"? I don't know. "New Age" is a very loose term but generally involves some sort of aquarian-ish beliefs, hence the name, with the "new" age being the so-called "Age of Aquarius". How much of this is mixed in with what the National Museum is describing, I've no idea.
There IS an Ásatrú (slightly different spelling) on Wikipedia's List of new religious movements, but is an American-based white supremacist group founded in the 1990s that uses norse symbolism and trappings but is about as "authentic" as an outlaw biker wearing viking headgear. I hope that's not what the National Museum is talking about.
ASATRU = MARVEL COMICS...