Epic has been surveying Fortnite players in some detail about a subscription model that looks more-or-less ready to roll. The below image first appeared on reddit and details the offer to players.
Subsequent to which, several players shared similar images, with the major point of variation being the projected cost. Some ask players if they would pay $14/month (as above), while others asked about $16/month or $19/month. For the cost players gain access to battle passes (which currently set you back just under $10 every three months), a monthly outfit with an alternate style, 'back bling', a pickaxe, and 1000 V-bucks a month.
It's worth emphasising that the reason companies do surveys is to decide whether something's a good idea or not: this may well never happen. But online reaction so far, from the kind of people who post on Fortnite forums and Twitter anyway, is surprisingly positive, with only a few grumblers pointing out that this could potentially cost upwards of $200 a year.
I dip in and out of Fortnite: I've bought a few battle passes, and always thought they were decent value when I could put the time in. A subscription for a battle royale seems a much bigger ask, especially in an era where everyone already has a dozen entertainment subscriptions of various kinds. But maybe if your only game is Fortnite, a recurring charge for unseen cosmetics and currency makes sense.