They probably went home. Nothing was said about them though!
No everything that happened on the island was real. However the flash sideways was a purgatory.
she disappeared with the rest of the lost colony on Roanoke island
Roanoke Island was nicknamed "The Lost Colony" due to the mysterious disappearance of its inhabitants in 1590.
Richard got off the island with Kate, Sawyer, Miles, The Pilot, and Hurly
It was underwater in the alternate timeline, also known as the flash-sideways timeline. It was never explained clearly why it happened.
Hurley becomes leader of the Island, Locke (smoke monster) dies, Jack dies dramatically, and it basically starts all over again.
The lost colony of Roanoke Island, off the coast of present-day North Carolina, was established by British colonists led by Sir Walter Raleigh. When he came back from a trip to get more supplies from Britain, he landed on the island and found no one there - the colonists had disappeared. Historians have theories about what happened to the colonists of Roanoke Island, but no one knows for sure what happened.
Island of Lost Minds was created in 2004.
The duration of Island of Lost Men is 1.05 hours.
Island of Lost Women was created in 1959-05.
The duration of Island of Lost Women is 1.18 hours.
They call it "The Island".