My sister has returned home from Japan. It actually happened last week. We had a rough time together on the first day she arrived home but we've been getting along very well for the last several days.
To clarify a few things: my sister is no longer interested in things like children and the other junk was also a bit of a phase with her as well, obviously influenced by her husband's family.
Me and my sister have been having a good time together so far and it seems we will remain happy together during her entire 2 month stay.