2013: one bag free for all FB members and bag charge for non-member
2014: no bag is free for Ivory members travelling on EU flights but a cheaper rate compare with non-member
2015: all non-member and Ivory members have the same charges and the fee for first bag increase to €20 online or €45 in airport
2016: KLM can kiss goodbye to its European short haul operation as Ryanair and Easyjet will be evolving to be a full service and all-inclusive airline
*all above statements are armchair speculation only, do not serve the purpose as any factual information at all.