as BioWare confirmed, it was something of an afterthought and is rather underdeveloped as a result
Really? o_O
Yep, according to
this post from Mike Laidlaw in the BioWare forums, the Solas romance was added only when development was extended for a year, but here he says so was the Cullen one which I hadn’t realised and I don’t think suffers the same issue of feeling like it’s missing something. I couldn’t find the actual quote I’d initially half remembered, which I think was from Patrick Weekes saying that they’d added the Solas romance later in development mainly because of its tragic potential.
especially given the extra content in Trespasser.
Speaking about ...
I wonder how different would be romancing Iron Bull, who will be still loayal to the Qun ... can you even romance him under those circumstances?
You can, but

. I’ll not spoil here, but yes it is different. And in my view not really done justice.