The moment something better than dota 2 comes up, dota 2 will start its maintenance mode.
It happened with all games, StarCraft 1, Warcraft 1 > 2 > 3, Diablo 1 > 2 then 3 was a trainwreck so 3 never replaced 2, only temporarily ( Path of Exile did replace it in the end ) - now there's Diablo 4 vs PoE 2 that will prob split the userbase.
What I'm trying to say is - it's just the nature of the world, old gets either revamped or replaced with the new.
In HoN's case, it was revamped for quite a long while until now unfortunately it's getting replaced.
Idk if you can c