How Ascension could be implemented

I know... I know... the old discussion about making gamemodes permanent.... But hear me out. Acension, a featured gamemode which has been especially programmed for the purpose of a sole event, which added an entirely new buff, the ascension, added a new "legendary monster" and is fun to play overall, has been removed only 2 weeks after its' creation. I hear the argument that "it's flawed", since many champions like Zilean or Yorick are literally crushing everything, or the people only playing for the "perfect ascension icon" and constantly leave since the enemy team got the ascension buff. (I got the icon, although through legitimate means, that's some dedication I suppose.)

But now, since those icons are no longer available that may be no longer an issue. And tweaking the ascension buff, so that he can't be Yorick'd/ Zilean'd would solve those problems. Other players, as well as Riot themselved referred to it as "Snowball simulator", but hey, that's the charm to it, I suppose. I would see no problems if the issues listed above are fixed and added as choice for Dominion, since both modes share some similarities. I have no hopes that it would return otherwise, since Ascension is only made for a special event and I can't see it return as featured gamemode anytime soon, except if dear old Riot would add a schedule, so to speak.