She would be Diana, the character that showrunners have discussed at the San Diego Comic Con to have a major storyline in the second season.
Back at San Diego Comic Con in July this year, "V" showrunner Scott Rosenbaum said that they will introduce Anna's mother in the new season. Keeping the details short, Rosenbaum did not say that they had someone from the original series in mind.
Jane Badler will be reprising her '80s role as Diana. The actress first slipped in the role in the 1983 telepic "V" before reprising it on the miniseries as well as the TV series which was canceled abruptly by NBC in 1985.
According to TV Guide, Diana is being kept in a part of the mother ship that is set up to look like the V's home planet. Rosenbaum said at the Con that Diana will be introduced in the first episode as a mean to explain where the visitors come from. The show, however, will not return until midseason.
In the last episode of season 2, viewers were given a glimpse of Anna feeling her first human emotion. "It starts in episode one, with the continuation of the Red Sky story, and an explanation of the fact that Anna felt human emotion for the first time, and unleashed the Red Sky early, how that really starts to screw up the whole plan that Anna had come up with," Rosenbaum revealed.