Something odd about the Trespasser epilogue (Anders romance)

Yes, I also picked up on that. Anders/Hawke romantic ending was not really fit into DA3 plot-lines well. Varric becoming a Viscount to start with was another very bitter thing when you had Hawke who became a Viscount.

True, but seeing how Varric feels about Anders I have a hard time picturing it.

However, I have always speculated that Varric's biggest issue with Anders was that he cares about him, and feels betrayed. The "I don't know, where he is and I don't want to know," line seems to suggest that even though he has his issues with Anders he still doesn't want to be able to relay information about him(it's my theory at least). Then again, if Anders is still with Hawke, then this would be a lie - so who knows.

But then again, he does outright hate Sebastian in Inquisition, which I didn't really pick up on in DA2. Though they were clearly not close, they didn't seem to have a hostile relationship.

And he did forgive Bianca relatively easy for being the cause of red lyrium being spread all over southern Thedas.

So, who knows. He is a bit of an enigma.

Well, I suppose it does not fit well with my Hawke, who'd never let go of political power and see consolidating it as the only way to protect Anders. Instead of trying to run. I have the same problem with Inquisitor's ending, he simply has no choice but to retain and subjugate the inquisition to his will to be in a position of power to ensure Dorian's safety in Tevinter. Those two are politically active lovers who wander into danger without a real safety network to protect them, so it falls to my character to do the dirty work, otherwise I just can't see them surviving.

Exactly so.
Varric was Anders best friend in Kirkwall (except Hawke, ofc.), he really cares about him, but he loves Kirkwall and loves the peace as well. His tools rather the persuasion, bribe, lie – if possible, he avoids the violence. (Easy to be rival him with aggressive Hawke.) Anders ruined his city and caused a war.

Vivienne (about Anders): "What could he possibly have hoped to accomplish with such madness?"
Varric: "Exactly what he got: a whole lot of innocent people killing each other."

So yes, Varric really angry at Anders, and feels betrayed.
I don't think, that this part of the sentence:  "...I don't want to know," is a lie. I suppose he really doesn't want to know, where is Anders.
But possible the whole sentence is a (half)truth. He perhaps doesn't know, where is ANDERS exactly. But he knows, how he can contact HAWKE. Varric is a loyal friend, whatever happens. (Yes, Bianca is a good example.)

When the Inquisitor back from the Fade, Varric write a letter to Hawke LIs, except Anders. This also can be interpreted as his anger toward him, but as a lie too.
But Varric mentions in a banter, that Anders will follow Hawke.

According to my scenario, Hawke and Anders will not return to Kirkwall. Not really excluded, that they will live near of Kirkwall.

Wasn't it that the Red Lyrium made them turn on Hawke, Hawke just hadn't known the significance of how the red lyrium was affecting them?

Though you'd think after their Templar Commander went insane and literally turned into a statue of red lyrium, they'd be the least inclined to take it no matter what their superiors said.

Also, Varric treats Kirkwall like something so irrelevant, and pins the harbour keys on the Inquisitor like it's some trifling pin or brooch. It was just terrible to reduce Kirkwall and Hawke's achievements and city to Varric's toy to dispense with.

I said, sorry!

Don't be naive! Cullen's men knelt before Hawke, true... but "the people bend their knee to quickly"... haha and so quickly betray as well. Why would the Templars different than everyone else?

Haha, of course!

Viscount Varric can go on adventures (Trespasser...)

Hawke's story not about the high career, and long, happy, peaceful life. Some of those always miss...

Hmm, I see, not Anders' romance got the most debatable end: Sebastian's romance even worse... So: if Hawke romanced and married Sebastian, still follows Varric to Kirkwall, instead of Sebastian to Starkhaven? This would be the laziest developer work... We speak about one-two sentence at the end, and a wallpaper! It really would have been too fucking hard? Okay, at least equal: Sebastian and Anders doomed as well according to the Bioware...

Yes, would be nice. But hey! I'm glad, that even the happy end was an option with Anders! 

Hmm, I didn't think, that Varric was there only for Kirkwall... And Cole was there for representing the Fade? The whole Inner Circle was there.

It's vague enough that it doesn't say exactly how Hawke helped Varric rebuild...so we don't really have to imagine Hawke necessarily went to stay in Kirkwall permanently. Maybe they met up somewhere or Hawke visited and helped Varric with a problem that was important to the rebuild effort.

I think Varric took what Anders did very personal, because not only did he love Kirkwall and was invested in it...Varric was the one other person, besides Hawke, who Anders was really good friends with. Plus he blamed himself and felt responsible. We know that's partly why he wanted to stay and help the Inquisition. So part of that anger is his anger at Anders, and part of it is guilt and anger at himself I think. But I think if he could forgive a Hawke that sided with Anders, he would forgive Anders eventually. Especially if there was something Hawke and Anders could do to help make things right with the rebuilding.