CBS All Access dropped a photon torpedo bombshell at San Diego Comic-Con with the announcement that the Borg characters Seven of Nine (Jeri Ryan) and Hugh (Jonathan Del Arco) will be appearing on the upcoming series Star Trek: Picard. The series, which of course features the return of Sir Patrick Stewart in the title role (and will also bring back Brent Spiner as — apparently — Data, Jonathan Frakes as Riker and Marina Sirtis as Troi), will obviously play into Jean-Luc Picard’s own dark history with that feared cyborg race.
It’s a surprising development because the casting of Ryan is the first major crossover between The Next Generation cast and Star Trek: Voyager (although the Next Gen films did feature a couple of cameos with characters from its sister show). So let’s look at the history of Hugh, Seven of Nine and Picard as well and consider how their paths could be converging in Star Trek: Picard.
Source: IGN.com How Seven of Nine Connects to Picard