Yes, it has been confirmed that Kristen Stewart and the others will return. and dokota fanning will play Jane in the volturi and Madonna is interested.But Solomon Trimble is not going to reprice as Sam Uley.
Yes, it is confirmed the same cast members will be returning for the next season.
moon is same like always but the only thing is moon is going away from earth
The cast for New Moon will be the same of which twilight was but the only new character i know who has been cast is Dakota Fanning who is playing Jane in New Moon
Yes, It is still going to be Kristen Stewart.
Yes, the actors and actresses in Twilight are signed on to portray the same characters in New Moon and Eclipse.
Irrespective of where the astronaut is, their mass is going to be remain the same
Yes he is and most the other cast(bella,alice,jasper,rosalie,emmett,jacob black,and laurent have confirmed they will) will play their old,same roles in new moon also!
Yes, Twilight has the same cast as the rest of the movies will. I agree with you, the casting was great, but I don't know what was going on with Taylor Lautner's hair!! *shudder*
No Jasper is a year ahead of Alice.
Yes, with new chracters/actors as well.
Probubly about the same as Twilight if not more
The moon is always the same size it may appear bigger because more of the sun's light is shining on it, but no the moon does not "grow" or "shrink".