When I used to mod for the old Battlefield forums and later when I hosted FNB, the emblems with totally unacceptable content were a huge issue. Every single week we got dozens of reports of emblems with nudity, obscenity, racism, etc. As much as I’d like to be able to create individual emblems. Preferably linked to platoons, people just can’t handle this liberty. And with the geopolitical landscape we’re living in today, I can totally imagine things getting even worse.
So in short, you can count on that this won’t make a comeback. No chance whatsoever.