I think the new simscity looks like the same as simscity 4 but the old was 2d and the new one is 3d now just to make the game look better. The new one will have new stuff in it so they can make it diffrent to the old one so like you can do more stuff on it.
This will be very good because players can work together and make something good in this game . Like citys helping each other and stuff. But One Prom what happens if someone joined and they didnt like your city and destoryed it all.
I am really Looking forwards to the new game to come out Because it will be really good and fun to play on. SimsCity 4 was a great game as well so they both might be the same but look different.