A Federation "City-Ship" designed by Fongsaunder of Wolf Shipyard.
I could see this as the perfect "Exodus" vessel, capable of piggybacking Defiant-Class vessels in its enormous ventral-side multirole docking/cargo bays.
It's interesting, but when I think of the main ship it usually looks in my head like a giant Galaxy
-class or something along those lines. Someone in the thread you linked said this looks like Mon Calamari meets Trek, and it does, and I'm not big on Mon Calamari ships.