Note that this is taken directly from the files and is subject to change at any time should EA decide to do so:
CHG : ThanksgivingTwentyFourteenFinalEndDate – 2014-11-29 8:01 from 2014-12-02 8:00
CHG : ThanksgivingTwentyFourteenEndDate – 2014-11-29 8:01 from 2014-11-29 8:00
CHG : ThanksgivingTwentyFourteenMoreLeftoversOneEndDate – 2014-11-29 8:01 from 2014-12-03 8:00
NEW : XMASTwentyFourteenPtOneStart – 2014-01-07 8:00
NEW : JingleBellWreckPtThirteenStart – 2014-12-23 8:00
NEW : XMASTwentyFourteenPtOneEnd – 2014-12-24 17:00
NEW : XMASTwentyFourteenPtTwoStart – 2014-12-24 17:00
NEW : XMASTwentyFourteenPtTwoEnd – 2015-01-30 8:00
NEW : XMASTwentyFourteenPlayPtTwoPN – 2014-12-24 0:00
NEW : XMASDayTwentyFourteenStart – 2014-12-25 0:00
NEW : XMASDayTwentyFourteenEnd – 2014-12-26 0:00
NEW : XMASTwentyFourteenPortalTwoUnlock – 2014-12-03 8:00
NEW : XMASTwentyFourteenNerdEnd – 2014-12-08 8:00
NEW : XMASTwentyFourteenMerchandisingPartOneStart – 2014-12-02 8:00
NEW : XMASTwentyFourteenMerchandisingPartOneThreePanelEnd – 2014-12-10 8:00
NEW : XMASTwentyFourteenMerchandisingPartOneNotLimitedEnd – 2014-12-19 7:59
NEW : XMASTwentyFourteenMerchandisingPartOneLimitedStart – 2014-12-19 8:00
NEW : XMASTwentyFourteenMerchandisingPartOneEnd – 2014-12-24 17:00
NEW : XMASTwentyFourteenMerchandisingFestiveDecorationsPartAStart – 2014-12-02 8:00
NEW : XMASTwentyFourteenMerchandisingFestiveDecorationsPartAEnd – 2014-12-23 8:00
NEW : XMASTwentyFourteenMerchandisingFestiveDecorationsPartBStart – 2014-12-24 17:00
NEW : XMASTwentyFourteenMerchandisingFestiveDecorationsPartBEnd – 2015-01-13 8:00
NEW : XMASTwentyFourteenMerchandisingPreXmasVillansStart – 2014-12-12 8:00
NEW : XMASTwentyFourteenMerchandisingPreXmasVillansEnd – 2014-12-19 8:00
NEW : XMASTwentyFourteenMerchandisingPreXmasCharactersStart – 2014-12-19 8:00
NEW : XMASTwentyFourteenMerchandisingPreXmasCharactersEnd – 2014-12-27 8:00
NEW : XMASTwentyFourteenMerchandisingPartTwoStart – 2014-12-24 17:00
NEW : XMASTwentyFourteenMerchandisingPartTwoHolidayDonutPromoEnd – 2014-12-27 8:00
NEW : XMASTwentyFourteenMerchandisingPartTwoThreePanelEnd – 2015-01-02 8:00
NEW : XMASTwentyFourteenMerchandisingPartTwoNotLimitedEnd – 2015-01-08 7:59
NEW : XMASTwentyFourteenMerchandisingPartTwoLimitedStart – 2015-01-08 8:00
NEW : XMASTwentyFourteenMerchandisingPartTwoEnd – 2015-01-13 8:00
NEW : XMASTwentyFourteenMerchandisingSnowIceStart – 2014-12-27 8:00
NEW : XMASTwentyFourteenMerchandisingSnowIceEnd – 2015-01-02 8:00
NEW : XMASTwentyFourteenMerchandisingClassicEpisodesStart – 2015-01-02 8:00
NEW : XMASTwentyFourteenMerchandisingClassicEpisodesEnd – 2015-01-09 8:00
NEW : XMASTwentyFourteenMerchandisingHolidayEndGrabBagStart – 2015-01-09 8:00
NEW : XMASTwentyFourteenMerchandisingHolidayEndGrabBagEnd – 2015-01-13 8:00
NEW : XMASTwentyFourteen_KingWinter_Start – __XMAS2014_GameConfig:Store:XMASTwentyFourteen_KingWinter_Start__
NEW : XMASTwentyFourteen_KingWinter_End – __XMAS2014_GameConfig:Store:XMASTwentyFourteen_KingWinter_End__
NEW : XMASTwentyFourteen_KingWinter_Limited_Start – __XMAS2014_GameConfig:Store:XMASTwentyFourteen_KingWinter_Limited_Start__
NEW : XMASTwentyFourteen_KingWinter_Limited_End – __XMAS2014_GameConfig:Store:XMASTwentyFourteen_KingWinter_Limited_End__
NEW : XMASTwentyFourteenCrossoverStart – 2014-12-23 18:00