PSA: League is not dying
I've seen quite a few folks misusing Google Trends the last few weeks, so I want to set the record straight.
There are two kinds of GT searches.. keywords and topics. Keywords only search the exact word as written, so if you do a keyword search for "League of Legends", you will only get people searching the exact words "League of Legends".
This is absolute rubbish for determining popularity.
What you want instead is a topic search. This would include people searching for information about the game. Searches like "teemo builds" or "2018 LCS" or "C9 Sneaky's latest cosplay" or "why is teemo such a ██████" - anything related to the game.
When you actually adjust your search to account for this, using topics instead of keywords, the result is much less dire. And much more telling as to what is really happening.
https://i.imgur.com/j828qww.png
MOBAs in general are on a downward trend, but League is the biggest one by at least 4x.
You wanna see what's sucking the oxygen out of the room?
https://i.imgur.com/tL5TuUh.png
Fortnite is now more popular than all MOBAs combined in the last 5 years.
League is not "dying". It's bigger than all of its competition.. the MOBA genre is just settling into its niche.
BTW: Those were all USA links. Zoom out to a worldwide level instead, and the trend still holds - MOBAs in general down, Fortnite way up, League still the biggest MOBA.