i THINK Fortnite is dead

I don't think that it is 'dead' it won't be dead for a long time. It's popularity in the young generations is still strong and it will hold on to it for a long time. These kids will remember Fortnite as nostalgic as older generations are remembering Minecraft, which is now getting a boost in popularity again.

However for the older generations, Fortnite does seem to loose interest rapidly, in one part probably because of the really young fanbase. Similar things happened with Minecraft as well after all. But I doubt it will 'die' in the next years with the amount of money that's involved.