To add onto what Tuna mentioned it could be interesting to see a more overgrown city-esque type of map. I think a good baseline to go off of or even reference would be one of the iterations of Taiga, not sure which one, but it had a similar idea going on. Especially at OBJs like company that had the entire front area that US would push through being completely overgrown with toppled vehicles and even player tall shrubbery that would relatively conceal them.
Also, I think the walls dividing the map could also be removed and to replace the empty space things like additional shrubbery, debris, obstacles, and maybe even small buildings similar to what we have on Echo would be a great addition.
Lastly, I think that powerplant or really that entire section of the map should be uprooted and replaced with a more favorable objective like Company or could even introduce a variation of old UK base from cscdesert with some additional terrain and/or buildings.
EDIT: I like the relationship that cons and Mosq have. However, Cons shouldn't be an official OBJ that can be capped and should be slimmed down to not be nearly as tall. Although, I think this is also in the works.
Also, making AFG base a little more unique to themselves would be cool as well. I.E. similar to cscdesert AFG base with some basements in a few buildings, shacks, etc.
Maybe even remake Outpost, UK Base, and/or OC and utilize them on this map.