When Season 3 came to a close, we saw Ray Palmer apparently blown up in his own office. As such, when this current season opened, we saw that Starling City had been renamed Star City in his honour and that Felicity Smoak had been given full control of Palmer Technologies. For all intents and purposes, Ray was most definitely as dead as dead can be only this is a show that specialises in bringing its characters back from the grave. With Ray, though, the shocker here wasnt even him coming back from the grave: it was that he hadnt actually died in the first place. Hed finally managed to perfect the ability to shrink, a power hed been working on during the second half of Season 3, but had been captured and held hostage in miniature form by the nefarious Damien Darhk. Of course, Ray would manage to escape courtesy of Team Arrow before he disappeared off to find himself (also known as DCs Legends of Tomorrow). Regardless, him still being alive came as a big surprise to many, even if the promo work for Legends of Tomorrow had done its best to ruin that surprise.