Alternative versions of Robin is later established that they are from the current time-line, and were shunted through time and given false memories by the Time Trapper, who wished to use them as sleeper agents against the time travel villain, Extant. It wasn't revealed until one of the later runs of the Teen Titans that this was not Dick Grayson, in fact his true identity was never uncovered. After this storyline, this version of Nightwing has not been seen since. Whether this version existed at all, after the events of Infinite Crisis or would later to be revealed to be an alternative Dick, Jason,
Alternative versions of Robin and his status as a crime-fighter with the Justice Society certainly reflected what had gone before. After the events of Flashpoint, Helena Wayne, daughter of Earth-2's Batman and Catwoman served as Robin and became the only partner that Batman had ever had. In this continuity, Bruce Wayne had never adopted Dick Grayson as his ward, so he never became Robin on Earth-2. However, he does appear later, married to Earth-2's Barbara Gordon, who never became Batgirl on Earth-2. The second Talon is shown in "Teen Titans" #38 (2006), the former sidekick of Owlman, created by Geoff Johns and Tony S.