Technically, they are "sigh," "face in clouds," and "face with spiral eyes," but it's pretty clear how these will be used out in the wild. Emojipedia has the full list in addition to these renderings of what the finals may look like.
Original sample images from Emojipedia visualizing how new emojis may look when they come to fruition. These mockups are created at the candidate stage in a glossy "Apple-like" style, and may or may not resemble final versions from each platform vendor.
The next release also includes interracial couples!
Images: Emojipedia / Fiona Art