Unravel 2 has yet to be officially announced, but it will likely be announced at the EA Play 2018 press conference today at 11:00 a.m. PT / 2:00 p.m. ET.
Here is the ESRB’s description of Unravel 2:
This is a side-scrolling platformer in which players control a pair of fantastical creatures called Yarnys as they navigate environments. Players traverse platforms and avoid hazards by swinging from yarn lassos; some areas contain animals that chase/menace the player’s characters. The Yarnys are defeated when they are eaten by a fish, grabbed by birds, crushed by boulders, or run over by cars.
The first Unravel was released in February 2016.
Update 2:42 p.m.: Unravel Two has been announced. Read more here.