Yeah you're correct the only one I've seen recently is the "High risk,high reward" that's offered to you for completing your first nightfall other than that I haven't seen anything new or can't find anything about drop rates on the internet so it's probably something that's just gonna die off. I don't see bungie going back into the coding system and putting them back I think it would just be us getting a chance at getting new emblems not bringing back old ones how it has been 😪