
Do what I do and handwave the fuck out of it.
I for one will never fault someone for going for RP even if their character is technically tied up in a plotline. RP whatever/whenever you want, and put it on your character's timeline later. Its not the end of the world if a few RP sessions don't line up with someone else's. Think of it like the comic universe. Everything significant happened a vague "few years ago", even comics that came out in the 90s. Hell, the game's timeline places everything that's happened since ARR in, what, a year iirc? You're already condensing 4 years of RP into one year of lore time, so I think its all fine.
I for one will never fault someone for going for RP even if their character is technically tied up in a plotline. RP whatever/whenever you want, and put it on your character's timeline later. Its not the end of the world if a few RP sessions don't line up with someone else's. Think of it like the comic universe. Everything significant happened a vague "few years ago", even comics that came out in the 90s. Hell, the game's timeline places everything that's happened since ARR in, what, a year iirc? You're already condensing 4 years of RP into one year of lore time, so I think its all fine.