I'm not sure how this thread became the Dark Souls port-beg thread, but DS uses
one aspect of Silicon Studio's technology: the post-processing middleware. That franchise is not on Silicon Studio's engine, it's not using their renderer, it's just using it's glossy effects system (which is slathered over just about everything good-looking out of Japan not on UE4, BTW.) So maybe calm down with the Souls nonsense, there's nothing in this announcement that makes DS any more likely to come over.
Something to talk about instead is the upcoming Granzella game, City Shrouded in Shadow. It uses the OROCHI/YEBIS tech combo, and is a PS4 game that's well in line with Switch specs (it's planned for co-release on Vita.) City Shrouded is also a Bandai Namco game, and I could see them adding Switch to the platform plans if PS exclusivity isn't vital to the launch plan. The game is this disaster-survival game (from the makers of Disaster Report) of giant kaiju attacking a city, and it will have (in its Japanese release, at least) bonus giant monsters including Ultraman, Godzilla, and Evangelion characters.
3D Dot Game Heroes would be dope as heck on Switch. (Fromsoft BTW published it, but 3D Dot was entirely made internally by Silicon Studio.)
I'm not sure why Silicon Studio never brought that anywhere else, though? They seem to be in no hurry to resurrect it (nothing stopped them from porting it to PS4, Wii U, Vita, mobile, or whatever all these years.) Silicon has had a relationship with Nintendo already (Bravely and Ocopath) so I keep seeing 3D Dot being an obvious release on a Nintendo platform but it never happens.