Also I think the pick/ban system for the regular system should be rethought (but maybe other people disagree: I made a twitter poll out of curiosity). The concept of home/away is interesting I guess but it seems to give the home team way more power than they should have imo. Currently the home team bans 2 maps, then the away team bans 2, then the home team picks from the remaining 3.
In theory this seems like a decent idea, and it's very similar to the ESEA system (3 bans each independently, then randomized). The key difference is that in the majority of cases, the away team simply bans the two maps they want to play least, and then the home team effectively gets to pick from the remaining 6 maps.
If the home team happens to read the other team poorly and bans maps that the other team was going to ban (say, via and granary), despite knowing that they will never have to pick those maps if they don't want to, it can be the case that the away team gets to do two meaningful bans (say, banning snake and gully which the home team is better than them at). But even with this, the home team wasn't going to choose those maps anyways, the home team can always effectively choose between 6 of the maps which they want to play.
ESEA's system was interesting because you didn't know what maps the other team was going to ban, you could risk leaving a chaos map (clearcut, via, gran, etc) in if you think the other team will ban it, but then you run the risk of them preferring to ban a map you are really good at and then you get RNG'd into the map neither team is very good at. This gave good teams incentives to actually play the new maps so they can use their bans meaningfully and avoid playing the maps that their opponents were best at, instead of avoiding the 'unfun' new map which in reality might not be that hard to figure out (e.g., ascent practiced propaganda and was solid at it).
edit: given all this stuff to talk about I think there should definitely be either a specific invite survey or a meeting like the LAN one, there's a ton of variables to look into as well as this such as how many maps. The ESEA system had 9 maps which I think worked better but maybe they prefer to keep the number of maps consistent with other divisions (understandably). Usually the 3 maps would have some overlap anyways so having 3 bans out of 8 isn't too crazy, and even if they don't overlap, randomly choosing between the two remaining maps that both teams want seems fair enough.