It's considered as a part of asexuality, to be honest. The current lead writer, Patrick Weekes, has already expressed interest in writing such a romance. The devs have been tweeted this thread and have been reading it over. Why won't others stop worrying about one LI possibly being demisexual?
You know, there is still going to be two bisexual love interests. So, why not make one of them into someone that has very very little to no sex drive until they actually love the LI? Instead of sex as a possibility before the romance is locked in (like most of the LIs in the DA series,) it can only be available after. Throw in a second option to cuddle instead of sex for those that would prefer that and I don't see the issue.
By the way, is it considered a legitimate form of sexual identity outside of tumblr. Like the fact that GLAAD, one of the most respected LGBT+ organizations in the world recognizes it as a type of asexuality:
http://demisexuality...-demisexuality/
http://www.asexualit...-demisexuality/
http://www.glaad.org...-awareness-week
Here's an article discussing asexuality, also mentioning demisexuality from almost two years ago:
http://www.huffingto..._n_3362206.html
For kicks, here's the psychological report that was the source of that article, and also directly mentions demisexuality:
http://markcarrigan....uality-studies/
It's amazing what you can discover by research.
Besides, demisexuality wouldn't be mentioned by name in the game. Just like no one calls themselves bisexual, gay or lesbian. This is a character concept for a type of romance, and to me, no different than making a dwarf LI, or having a female LI non-Chantry. It's not harming anyone, and I've always supported this idea.
Why are people so opposed to the very idea of the writers trying out something that most others might not understand? No one is taking anything away from anyone here.