Amazon.ca & Ozon.ru have listed The Sims 3 “Starter” & “World” Bundle Packs. The Sims 3 Starter Pack Includes The Sims 3 Base Game, The Sims 3 Late Night, and The Sims 3 High End Loft, while The Sims 3 World Bundle includes The Sims 3 Monte Vista & Hidden Springs Worlds.
There is no confirmation yet which countries both these packs will appear in, but we do know they are set to release on May 14th, 2013. During The Sims 2 years, these packs were released in preparation for The Sims 3. This is NOT something that is set in stone, but it is just an observation.