Here's a link to some tibits of infomation on FFXIII-2 Toriyama and Kitase Discuss Final Fantasy XIII-2
If you don't feel like clicking on the link Here's a small overview
  • Your party members will move around town and get into conversations
  • When it rains, people in town will gather under covered areas.
  • The weather will have some effect on battle.
  • There will be search/exploration element involving Moogles.
  • The save system will in general be auto save