First, its now officially confirmed that Ultra Street Fighter II will have a new first-person mode. This was originally teased in the games debut trailer last month. Its a unique game mode called Unleash! HaDOken, and is specialized for use with the Joy-Con controllers in a first-person view.
The box also shows that Ultra Street Fighter II will have some sort of art gallery. Players can view over 250 pages of artwork.
As one final note, the box contains a logo for the MT Framework engine. It does appear that Capcoms mainstream engine is capable of producing Switch software.