According to Walt Disney World News Today, the overall ride length will also be extended, which may necessitate the relocation of both the loading and unloading zones of the ride.
The massive remodel is scheduled to be completed in the latter half of 2022, as part of the 40th anniversary of Epcot.
However, when that happens, what we’ll see inside Spaceship Earth will apparently be a significantly updated ride.
Every diorama segment up to the Industrial Revolution is expected to get a significant refurbishment, while much that comes after that point is expected to be completely replaced.