I was looking around on Perdition today, and outside of the map, behind the 3 colored gates along the perimeter of the map, there are LCD or hologaphic advertisements which display advertisements for Vyrant Telecom and Traxus Heavy Industries, but there’s also advertisements that display:
“Look Out…For the Future!!”
or
“The FUTURE is…Now!..”
I just have the feeling that 343 is pointing towards something, but I haven’t figured out yet what it is… Maybe a future project or some other thing that is gonna happen in the nearby future?
I’m curious. Are you?
Perditions theme reminds me of Turf and Terminal and I wouldn’t mind seeing those remade. Since they are both H2 maps I could see this pointing towards a Halo 2 Anniversary. 
I’m just messing around with this prediction but it would be awesome.
I think we’ll see Perdition or an area similar to Perdition in future campaigns. Human city theme is something I’ve been missing in the past couple Halo games. When I seen the H4 ending for the first time that city theme made me realize how awesome future Halo titles would be with a human city in one of the levels.
Halo 2 Aniversary would be awesome indeed, but I feel like the signs have something to do with maybe an other game or so, from 343…
Perdition reminds me of New Mombasa Streets. I even hoped to find an Easter Egg, that had either equipment, symbol of ODST.