They are also planning half time which is the only way I can see this working.
I hope it works like dota where the maps are only slightly different on each side (dire closer to rosh) and the main differences are the visual themes. Its made so the sides are balanced and being on one side isnt an advantage, it just encourages a different style of play
It could be cool, it could be stupid. There isnt an issue with the current formula of ctf but this sort of stuff could make games more of an "event" when cameras are observing different team discussions in half time and things like that.
50/50 this could be good. Either way its iin UT4 which I doubt I will play much anyway
UrT always had asymmetrical levels with halftime and side switching and works great for them. Game gets much more depth, since each map requires 2x more learning :)