Wolfgang
Kraftwagen König
MB Passion posted their GLB rumors article, reminding us this alleged model is just a rumor, and MB has not mentioned a "mini-G" or some such model to date. However, they also speculate by 2019 a model with a designation of X247, thus based on a new 2018/2019 W247 B-Class, could make some sense, should MB decide to go ahead with such a model. 
http:///2016/09/mercedes-benz-arbeitet-am-mini-g-suv/

http:///2016/09/mercedes-benz-arbeitet-am-mini-g-suv/