As things stand right now, there is no official word from WWE as to how SmackDown moving to Thursday nights will affect the airing of the show in international markets.
The belief is that SmackDown in Canada will move to Thursday nights as well. Countries such as Australia and the United Kingdom have been getting SmackDown almost a day early and that may no longer be the case due to timing.
It’s also believed that due to the SmackDown time slot change, NXT, Superstars and WWE Network shows such as Legends House season two will be moved to a different night. Early speculation is that those shows would be moved to Wednesday nights.
(Credit: Wrestling Observer Newsletter)