Personally, I don't know if it has been said before or not, but I think we should get two iron banner seals. Both the seals are the same it’s just the name that is different. Like for the Destiny 1 vets who had beat the rise of iron campaign, Lord Saladin called us “Iron Lords.” So I think, forever one you played D1 and beat Rise of Iron our iron banner seal should be called “Iron Lord” and for every else who didn’t there seal gets called “Young Wolf” but the requirements to get the seal and gild it remains the same for everyone. That’s about it.
A lot of people aren't on the same account they were in D1. Having two separate seals is one thing, but the requirements should probably be different. Especially since some people could have 100 hours across both games and end up being called an Iron Lord.
Personally, I think just one seal is necessary, and getting the seal in general should make you an Iron Lord regardless of D1 vet status. That said, D1 RoI vets should be getting veteran dialogue regardless.