Since I've been seeing a lot of ambiguity around whether or not the Nintendo Switch is willing and able to provide support for HTML5 Games and/or Construct 3, I decided to send an email to Nintendo of America Support to see if I could get a straight answer on the subject.
The reply was:
Here's the link to the image, not sure how to add images with the new forum format.
( i.imgur.com/ml3RVt2.png )
So it would seem that the definitive answer would be no, there will be no support for Construct Games on the Nintendo Switch; unless one goes through the same process that The Next Penelope did, which may be a bit complicated for those of us who are inexperienced.
If you don't know what i'm referring to, here's the link to the article:
Hope this helped clear some things up.