Generally I'm anti dating sims like Mass Effect and the upcoming Dragon Age Inquisition so romance isn't a huge thing for me however in the case of Original Sin it would be very awkward if there was no romance option between the player characters....the very cover of the game implies it and the very words "Original Sin" have heavy cultural implications in a lot of cultures. In the case of Original Sin I'd say some kind of romance theme is appropriate and necessary to the topic of the game.
Now to be absolutely clear: romance does not have to mean sex or nudity and all that.
Originally Posted by Edvin
Arcanum, Baldurs Gate 2, Planescape Torment... All legendary isometric RPG had romances.
Create another great isometric RPG with two main characters opposite gender, saing things as:
" Will they end up as friends and even lovers, or do they have to learn to live together out of sheer necessity? "
Unfulfilled promises are in the publishing industry a dangerous thing...
I do agree such a change can end up being quite explosive here. Mass Effect 3 was hyped as the culmination of consequences to choices and since it was the end of the trilogy it was promised to have heavily branching choices....that's what people bought the game for, it wasn't some side or minor feature but THE reason to buy the game....so finding out that we've been lied to and manipulated and lied to was a huge deal....not only were there no branching choices but all previous choices were meaningless and of no consequence and the ending was completely nonsensical.
In the case of Original Sin romance is extremely heavily implied and was explicitly promised and I'd say a key topic to be addressed in any and all settings that intend to start talking about "Original Sin" no matter how you want to alter the meaning of these words for a fantasy setting.