Series 5 will probably air around Spring 2010.
In the fall; there will also be a Christmas special.
Gallifrey
Yes but only with the Doctor Who Series 4 Boxset
the new actor playing the role of "the doctor" on the series "dr.who" is Matt smith....
2011.
The new doctor who series six aliens are called The silence! These are not the only new aliens for this series but so far the only ones!
No Jack is not in series 5.
now
There will not be a new series of Doctor Who until 2010 when the new Doctor will have taken over from David Tennant. Planet of the Dead is the first of four specials that will air in 2009 instead of a full series.
What new series?!?!?!
It is said to come out in approximately spring in England
Yes there will be a series 7, Matt Smith will continue to play the Doctor but there will be a new companion.