I think that makes a lot of sense, honestly. So Tormund and Roberta are both still alive and still probably in service to their respective nations? That'd be neat, considering Ferrin's adoration for Sir Tormund and Lady Roberta after hearing all kinds of legends about them while he was training to be a knight xD

And yeah, if that's what we decide to go for, I suppose she would have been a child at that point. She might even have caught a glimpse of Tor and Roberta as they worked in Bogshot, a fact of which Ferrin would be exceedingly jealous xP