At the D23 expo last year Disney announced it was adding a new space themed restaurant. Here is what wee know so far; It looks like the new restaurant will be located between Mission:Space and Test Track. When guest first arrive they will take an elevator ride which simulates the ride into space. There will be a giant wrap around screen so it appears guest are looking out into space. This new sit down restaurant can seat up to 350 guests and should be a nice addition to the new Guardians of the Galaxy ride opening by 2021. While new details are slowly being released, a new job ad may have given more information. I looks like the restaurant is going to be open September 2019 and the name on the job listing was Space 220, could this possibly be the new name?
Keep checking back for more details as they are released.
Edit: Disney had confirmed the new restaurant will be called Space 220 but the opening date keeps being pushed back. Looks like we might have to wait until March 2021 to try out this new immersive dining experience.