Last month it was reported that the upcoming Reissue/Encore Devastator could be in Gen2 yellow to warrant a re-reissue of the set, but now it appears that it will again be Gen1 green, but just with a new head to mimic the cartoon head-sculpt.

A new head is nice, but for those who already have Devastator, or the "recent" reissue set, a new colour would make it more worth doubling up on the mould.
I guess they calculated that they would sell more in the same Gen1 green, than they would in the more obscure Gen2 yellow.