Ari was indeed talking about it for years (and I was never a fan of this idea to tell the truth), he "almost did it" (based on what he says, so don't know how close it really was) in Helsinki. I guess without Oliver/AOI in his corner they didn't really trust him with the good organisation. AOI (or to be more precise Carré Event AG) are an excellent choice for making this event well-organised and chic and glamour, they have a huge experience in such things. Oh, and Oliver has a great taste, I'm glad that he will be the "concept developer" (and not Ari), at least I can be sure that the quality will be high. The price will be high too (you can probably expect some packages with dinner, VIP sits, photo ops, invitations to the banquet, etc).
From what Oliver said it looks like the "art" part of this show won't cost them much efforts as this is basically part of the "Art on Ice: Time to Time" show they had in January 2019. I can even pinpoint with quite high certainty which numbers exactly they will reproduce. Both "Momento" and "Cirque Éloize" were really great btw, loved them. "Group skaters" and "special skills" skaters are 10-12 skaters Ari has which usually perform in "Fantasy on Ice" and "Art on Ice".
Didn't like the "one third of the ice will be covered" thing.
Online fan voting most certainly will turn into a disaster, with crazy fans and bots and all that (and, yes, based on their other online systems expect bugs and crashes). But they already did it for Team Challenge Cup and probably thought it was fair and correct (was it? I doubt but I didn't really follow). And fans most definitely will get more topics to bitch about during the off season when their favourites won't win (I expect all awards to go to Eteri's team and Yuzuru).