Nintendo Switch potential "M-rated" game(s) shown in presentation

[rjason12]

Saw this link in a forum post on GameFAQs 

http://nintendowire.com/blog/2017/01/06/new-details-switch-reveal-kimishima-potential-age-sensitive-content/ 

What games do you think they could be showing off in the presentation? The likely guess is Skyrim, though it might have something to do with the eternal darkness trademark renewal (though they've renewed that every couple of years).

Thoughts?