The Sims 4‘s Spa Day expansion pack is gaining a huge content update next week according to a recent Maxis livestream.Originally spotted by Eurogamer, last night’s livestream provided details on the content update for the 2015 expansion pack, with a wealth of new features and improvements offered for free to existing owners.Previously, the Spa Day expansion pack for The Sims 4 focused on health and relaxation and that trend has continued with this hefty content update.