My theory regarding that episode was that they had decided to dismiss Jennifer Lien at that point. So, they decided to take her character's main gimmick and just turn it up to 11 for one episode. This includes her living out a full life in those 9 years.
I'm not absolutely sure of that.
If we look at season 3, it seems like Kes were about to have a more prominent role in the series.
We had episodes like
Warlord with focus on Kes, we had
The Swarm where Kes played an important role when it came to saving The Doctor, we had
Before And After which focused on her background story and we had
Scorpion#1 where she also was one of the main characters. We could actually count
Sacred Ground too in which Kes isn't that active but still plays an important part since Janeway is ready to sacrifice herself to save Kes's life.
We also had discussions about how to prolong her lifespan in
Before And After and such discussions started already in the (excellent) season 2 episode
Cold Fire.
Some sources states that Lien didn't know anything about being fired until the beginning of the filming of season 4 started and that Wang was on his way out. I wouldn't be surprised if that was the truth.
Included in that was exploring how romances might take place between races of such varied lifespan. Some of it works: Tom's story of his brief time with Kes, for instance. But they also wanted to play with the inevitable consequences of Ocampa generations being so much shorter than human ones. One reason why I gave the Harry/Linnis ship a low rating despite my really liking Tom/Kes is that Harry could have been subbed out with anyone and it would barely have mattered. While Andrew and Linnis were moderately important early on, all we noticed about Harry was he had two gold pips instead of one.
I agree on that one.
But at that point, they should have realized that the nine-year lifespan wasn't a good idea and sorted it out. In fact, they may have realized that already in season 2 because it was seldom mentioned in that season and afterwards. Maybe
Before And After was a last attempt to do something with that scenario and then they also had prolonging her lifespan as an alternate if it turened out that there was no way to salvage the nine-year lifespan.
And yes, in that alternate timeline, Harry got a promotion. Why was it so difficult to accomplish in the "real" timeline?
Had they kept Kes and had her lifespan proceed normally, Harry/Linnis could never have worked. We would have seen her as a small child.
Which would had been better.
It actually did have some good bits. If not for the interference and the mandated punch of the Big Red Reset Button, it had real potential.
Exactly what I think too. And it was actually a spooky and quite exciting episode.
They didn't have to yank it away. Just have it revealed that NO, Harry was not born Taresian. YES, he caught a retrovirus that caused him to gain their traits... but the modification to make to the story is that the EMH can't undo the retrovirus's progressive effects. You still have the "Harry's turning into an alien" storyline, but it makes more sense.
I agree on this.