Got the game on 29 May and just finished it yesterday after spending at least 6 hours a day playing it everyday, and I have to say CDPR did a great job and it was truly one of the best games I've played with probably the best storyline ever. I got the ending where Ciri becomes Empress and Geralt moves in with Yen. Right after the epilogue, I found Keira near Kaer Morhen where the funeral was held (door leading to her was locked so i had to jump off a wall). I was able to ask her if she and Lambert were a thing, and that was nice as it showed there was some continuity from previous events. But soon after I got really depressed as I couldn't find anyone else, not even Dandelion at the Chameleon, and this was the first thing I googled.
It's comforting to know that this is a big issue for majority of players who absolutely loved the game, in spite of what the devs think, the end game left a bitter taste in our mouths. I was hoping the two expansions coming would develop the end game (like Skyrim), but from my understanding it doesn't. I mean even Skyrim, without expansion packs, you could see the results of your actions in the end game i.e. who wins the war, what happens when you kill/don't kill that old dragon, what happens to the assassins guild and mini Hogwarts etc, so it's pretty disappointing that Witcher 3, which I felt was superior couldn't provide a satisfying end game. So I'm hoping since staff from CDPR have read this thread that they would consider making a third expansion (paid) or just a new patch which develops the end game.
I mean personally, I realize it will be a big effort to make scenes/dialogues with Ciri whether she becomes a witcher/empress/dies, but at the very least, assuming she is alive, it would have been very comforting for Geralt to receive a letter from Ciri talking about her new life as the Empress or adventures as a Witcher. At least the players know she is alive and safe and possibly enjoying her new role. As for the romance options, I think it is absolutely necessary that CDPR develops an end game where you see Geralt living with Yen/Triss. While I would love it if there was to be some new dialogue where Geralt ask Yen/Triss about their thoughts about what has happened, or where Geralt implies he is bored/empty and Yen/Triss tells him to go kill some monsters (this would definitely fuel my desire to complete the remaining witcher contracts), I'd be satisfied just with the sight of them in the same house, where Yen/Triss can be seen reading a book, brushing their hair, sleeping and the only interaction is them saying "hmmm?' 'Yes Geralt' 'Let me finish reading this' or 'Let's go for a walk later'.
As for outcomes of the war, it is really just a question of replacing banners, soldiers (more witch hunters in other areas if you let Radovid win/ Nilgaardians in Novigard etc) and maybe some random NPCs talking about how better/worse things are. No outcome as a result of Radovid dying was really a poor decision, and was something that should have been dealt with during the end of the Reason of State mission. Just seeing Dandelion, Priscilla and Zoltan at the Chameleon can really lift spirits, no dialogue needed. Lastly, it would be great if Geralt could meet Roche (assuming you sided with him) and get those honors. I can tell that CDPR really take fans opinions seriously, and this is a serious issue in what is otherwise probably the best game I've ever played. So please, for the love of god, fix the end game.