Looks like Playfish is planning an “Expansion Pack” type of update for Sims Social!
Lastly, EA Playfish is mindful of extending the life of The Sims Social on Facebook through expansions. Far from holiday content updates or light gameplay tweaks available through new purchasable items, EA Playfish is aware that Sims fans are expecting almost completely new gameplay additions on the order of those we see in the PC franchise — pets, romance, new locations, etc. Abe tells us the developer isn’t ready to talk specifics yet but that we can expect to see Sims Social getting its first expansion “very soon.”