I received the following information from the Education NXT blog regarding those new bins (see pictures below in my earlier posts). Here it is:
"The gray storage bin we package the LEGO MINDSTORMS Education Base Set will likely not be available until sometime next year. We do have a bin that is the same size and shape, only made of blue plastic instead of gray. This bin is available here: Medium Blue Storage Bin. The sorting trays are not available separately; they are only available as part of either the LEGO MINDSTORMS Education Base Set or the Education Resource Set."
Thanks to L.W. from Education NXT for the update...
"The gray storage bin we package the LEGO MINDSTORMS Education Base Set will likely not be available until sometime next year. We do have a bin that is the same size and shape, only made of blue plastic instead of gray. This bin is available here: Medium Blue Storage Bin. The sorting trays are not available separately; they are only available as part of either the LEGO MINDSTORMS Education Base Set or the Education Resource Set."
Thanks to L.W. from Education NXT for the update...