The story itself will not revolve around exploring various kinks or sexual content in general, but rather around the characters and their actions with sexual content emerging organically. This might be relevant even to those who might be interested in the concept of the game but feel dissuaded by the tags in future content, as it applies to just about every fetish. I'll elaborate below and give an example for those interested.
And to finally answer your question - non-NTR will be the majority, but I'm not sure by how much. There won't be any "NTR" vs "non-NTR" routes in the usual sense. NTR content will exist alongside the non-NTR, so it won't be about choosing one or the other. As for the hardcore/male domination... yes, I can see that happening, but not in the early episodes.
Also, don't think the MC will be a sissy just because he is an elf! I mean, unless you make him act like one... but I haven't really considered any "coat hanger" paths for the main character. I really dislike when the MC is a pushover to facilitate NTR content.
Honestly though, I might be bad at explaining my thought process, so if you are concerned about the future content, just wait a few chapters and see how the game plays with sex content in it.
Sorry about the long post, brevity is not my strong suit.