Look for Shauna Kain (Siryn--pictured), Bryce Hodgson (Artie), Conner Widows (Jones) and Luke Pohl (X-Kid) to reprise their X2 roles in X-Men 3, according to X-MenFilms.net.
The young actors are currently shooting in Victoria, Canada at the Royal Roads University, the site says. Daniel Cudmore will return as Colossus.
Meanwhile, Bruce Davison's representatives say fans shouldn't expect to see Sen. Kelly/Mystique back. He's shooting The Triangle mini-series with Sam Neill and Catherine Bell and then will film The Real Catch.