Alright guys, we had our fun for the day
No, Ballbags is not a new UGX Team Member and no, Ballbags 5 is not the next UGX Map, and no, this is not a confirmation that he is working on Ballbags 5. That picture is the interior of UGX Cabin with a tree, car, and other ridiculous decor added in place of the original models. Happy April Fools 
Below you will find the original post:
Hello all! Today I have a very exciting announcement to make! We have a new mapper on the UGX Team!
His name is BallbagsMcGee and I'm sure you are familiar with his past work, the most popular of which being Ballbags 3: Treehouse of TERRORISM:
The UGX Team has long admired the work of Ballbags McGee and featured each of his maps in the Map Manager alongside other amazing community maps such as Weezy420's Nacht Der Toten Walder and CoDMapper's Zombie Seelow.
Now that we have a more than capable new mapper on our team, I think it's finally time to release some information about the first map to be released featuring UGX Mod v1.1!
BALLBAGS 5: KITCHEN OF INSURRECTION

(Image courtesy of BallbagsMcGee)
So far, BALLBAGS5: KITCHEN OF INSURRECTION has been under development for
over two years. Here are some Radiant screenshots to serve as a preview of the map:
I hope you guys are as excited as we are about this new map! I think Ballbags himself is probably the best person to tell you good this map is going to be:BALLBAGS 5: KITCHEN OF INSURRECTION is the behst map ive evur dun too date. i realy cant fink of better groop of peopl to wurk with on dis new map BALLBAGS 5 KITCHEN OF INSURRECTION. the forth map in the seriez is still undur development wich is why ballbags 5 is cuiming out first on ujx mods dot com thanks fur rreading and goh play my maps - BallbagsMcGee, UGX Mapper