Doesn't the scene at the fountain with Triss seeing the future in the water play after Novigrad and Kaer Morhen?
When you look at pure romance content alone, Triss and Yen got rougly the same amount of content, with Yen getting 1 extra kiss scene and 1 extra sex scene.
Yes, Yen got a little more romance content, but both romances could have been handled better.
Edit: Nevermind I forgot about the kiss scene with Triss at the masked ball. So scratch what I said. The only thing Yen got extra that Triss didn't get was 1 extra sex scene.
Well I am under the firm belief that more be better!

As you say, if they are even minus one sex scene then they should add one for Triss after they meet back up. AND I think they should add something else for either/both, however you say it...near the end. It doesn't half to be a sex scene it could just be a short hour to talk or relax...it would be the, "put it all in perspective" moment.
As I see it, Geralt is an incredibly passionate man who loves Yen in ways only the books could properly express...to really convey that to a person playing a video game, there has to be scenes like we got on the boat, post Last Wish. And I think they should be staggered throughout the story. There are places for that with Yen in Act 3. I think it would slow the pace and let the player catch his breath and think on it a bit.
For Triss, the argument isn't 'did she get unfairly hosed in the content' department, as you have pointed out, its virtually the same as Yen, they owe Geralt one more bedding of Triss but then its all good, BUT, I know from reading your posts on the subject, you are critical of this topic. But what I believe is that since Triss gets all her best stuff much earlier and in a tight package(wow that could be taken...anyway), her and Geralt should have something more, later.
I will remind, you can romance Triss and get ALL those great scenes and still send her packing at the end...I did

THEN you go with Yen and get another series of goodies...WHY not let the person who wants to be totally into Triss get a little more later on too?
I also think there are good reasons for Yen to have more as well...she is Geralt's "Lover of Yore" and it seems like it would only be fair to see those who want to respect book canon, be rewarded too.
EDITED: Sorry about the rambling nature of my posts today...not at the top of my game.
