Should I buy a current model Camry or wait for an update?

The Camry is on run-out at the moment, which suggests there's an update coming soon. Next month would be on the cards. I wouldn't expect any big changes with it, after all Toyota is about to end local production in 2017. Waiting for the update depends on your needs, you might prefer the newer model, which will have a better resale when you sell than the current car, but Toyota has some deals on the outgoing model and it might be advantageous to snap one up now.