Closest was in 2001/2002: Several final Beast Machines toys (Bruticus, Megabolt Megatron, and Supreme Optimus Primal) which were cancelled got released in the Robots in Disguise line. The whole range of basics in Machine Wars and one of the Spychanger sets in RiD were leftover G2 figures which had not seen release. The big thing with those is that molds were finished for them. If Hasbro casts molds, you can be certain they'll try and use. Cosmos had NOT reached the point where usable molds had been cast. If we see him, he'll be effectively an entirely new toy (beside, the Classics concept was better designed ) I would give up Generations to get Transtech.