Time's Arrow Part II was pretty much Whoopi Goldberg's swan song on TNG. Her appearances in Rascals and Suspicions were fairly small.
So excluding Time's Arrow, the child actresses for Guinan and Ro had more screentime than Goldberg and Forbes for the entire rest of the season. At least there were 2 Q and 2 Barclay episodes to make up for it.
We see Guinan, in Generations though, that's even when we learn the name of her species.