On StarWars.com, it was posted that "In addition to the Jedi Council chambers, the Senate Rotunda and Palpatine's office, two environments from the original trilogy are being carefully recreated for this earlier era in Star Wars history, much like the Lars Homestead was faithfully reconstructed for Episode II."
Any educated guesses as to what they could be?
Ones that come to mind for me are:
Obi's house
Jabba's palace
Yoda's hut
possibly the Cantina.