So, I romanced Solas on my second around. I loved Cullen's romance, and I was extremely glad that they finally made it possible for people who love him. However, Solas's romance was amazing. The fact that it is so flawed like many of the characters in DAI. I love it! I do hope for more DLC, but not just for the romance aspect of it, but for more information and character development for him.
I also have a theory. I think Arlathan is the black city in the fade and that Solas is possibly the maker in andrastian. I think this because he has pretty much turned away from everyone and even asks if he has miss judged them. Oh and when you talk to him about battles he has seen in the fade, he talks about savages that carried a tune better then the chantry could ever dream of. I think this references Andraste and her army, because I was reading some codex somewhere that talked about how they would sing as they marched into battle....I will have to look up all the info and post it later for references...Let me know what you guys think! Oh and I definitely think that the people he was talking about helping in his conversation with Flemeth was not the people of Thedas, but the other gods still locked away.