The mod is not avalaible for the moment.
When it is finished, it will be published first in French.
I will have to apply it to the English version in a second step, to then make it playable on 7th Heaven. So it's not for tomorrow !
I don't think I'll add any other zones for midgar at the moment, because I already enlarged sector 8 after the first mission, I added a large screen to sector 6, and several to sector 7. And even the sewers ! I want to create fields for other areas, I can't only enlarge Midgar and leave the other areas of the game as they are.
If I have good ideas to others Midgar areas, I'll create them, but it's not my priority right now.
I don't know how to add a new summon, and I don't think it's possible.
Thank you for your support and feedback !