Lets be real...Twisted Treeline is heading where Dominion map did

Riot continously has ignored the gamemode entirely, there has been nothing new added to it for nearly 3 years now, and gold funneling there isn't being addressed either so only a literal handful of champions are viable there.

Honestly, I see Twisted Treeline being deactivated permanently in a few years the same way Dominion was deactivated after Riot intentionally ignored it, then reasoned for said deactivation with "not enough people play it"

of course not enough people play it when you leave it to die.