10 v 10 or 7 v 7 and a new map

Ok other than the differences of how the maps looks its still the same maps why not get bigger groups with a new map to go with it more people could play and it would make bigger and better team fights. Sure they may be the problem or crashes but with time that can be fixed. I have asked many, many, many league players what would happen if they made a new map and made it so you could 7v7 or 10v10 and they all said that not only would they play it but it will change league for the better and the worst. Better = more fights and more chances to have a good team comp. Worse= more wait time and lagging with team fights. So everyone if you get the chance say your opinion about this please. Thank you to everyone who says there mid negative or positive.