The photo is of the main voice cast for the reboot, although the characters need CGI rendering for the series.

The idea is to bring back seven voice actors (including Brooke Goldner and Cree Summer) from the 2010 series back to reprise their roles for the reboot and bring in new voice actors to provide voices for both the familiar characters and the new ones. New voices include Benedict Campbell, Will Forte, Cherami Leigh, Jay Leno, Kate Micucci, and Zeno Robinson. New characters so far may include Copper (voiced by Travis Willingham) and Luna the Fox (voiced by Sabrina Carpenter).

These are ideas for new voices and new characters so far. The next update will dive into continuity changes.