Well, this is good timing. I can imagine this selling a lot especially when kids don't need a subscription to play F2P games.
then again fortnite is currently in the news for putting some 9 year old girl into rehab for addiction and has essentially been the basis for the world health organisation to declare gaming addiction to be a recognized mental illness.
EDIT: also, i would assume this is the full fledged fortnite (the co-op survival horde thing). which isn't free to play?