Following are speculations for Season 4:
http://www.sylvestermccoy.com/newdoctorwho/
Real or not i thought it would be fun to read......
Season 4
40X. Voyage of the Damned
192. 251207 - 40X 1h Christmas Special by Russell T Davies
The Titanic crashes into the TARDIS just as it is dematerialising. The Doctor finds that time is being manipulated by some spikey aliens called Porgs and he gets the help of a young waitress aboard the Titanic. It is about to leave on its maiden voyage so the adventure will probably continue until the ship strikes the iceberg. Hmm. Does this mean that the iceberg was really a space ship or that the invasion of these aliens actually caused the ship to crash? Can't wait!
Stars Hugh Grant as a Villain and Kylie Minogue as the Doctor's companion. Kylie Minogue is currently in Cardiff. Filming began in June 2007.
401. On Donna
193. 220308 by Russell T Davies
Donna Noble encounters an alien emergency in London and there's only one person she knows of that can help her.
402. Mind War
194.290308 by
Donna and The Doctor visit Agatha Christie, played by Fenella Woolgar, and together they investigate a strange murder. The Doctor begins having flashbacks to the Time War. Something is starting to affect his past.
403. An Ood Omen
195. 050408 by
A trip to the far future. The Doctor remembers his eighth incarnation and knows that a storm is coming. Something he'd forgotten. Something to do with Davros. Something buried in the bowels of the Ship, Chesterfield. Donna has to deal with some Ood.
404. A Deadly Past
405. Axonite (Part 2)
196. 120408
190408 By Terrance Dicks
Something has taken control of the TARDIS. Something that has been trapped in a timeloop in geostationery orbit above Britain for 30 years.
The Axons are back!
406. Sapphire Avenged
197. 260408 by
Joanna Lumley takes on the role of the Master, while John Simms reprises his role as the Master's spirit. The Doctor and Donna track the Master down in the year 100 trillion.
407. The Icy Nemesis
198. 030508 by
A strange signal is being received from Mars and a retired Brigadier is asked to help decipher it. He calls on the Doctor for the first official meeting of Earth and the Ice Warriors. But they can't find the Doctor. But they can find Martha Jones.
08. Eternal Triangle
409. Destruction of the Daleks
199 100508
170508
Time continues to change. The rupture caused by the Axons is starting to pull the Doctor back into the Time War. He knows he destroyed Davros but now he's back (Played by Ben Kingsley) And what do the Eternals have to do with things?
More flashback scenes of the 8th Doctor during the timewar, including the moment when Davros kills him.
Martha and Donna get on really well in this story!
410. Time War Part 1
411. Time War Part 2
412. Time War Part 3
413. Time War Part 4
200. 240508 by
310508
070608
140608
The Time War has changed. The outcome is different. The Daleks have won. The Doctor needs to go back and change time again. Watch the death of his fellow Time Lords again. Watch Gallifrey burn again. But he finds a way to change everything, thanks to the help of Rose and Mickey. The Time Lords can live again but it'll cost the Doctor his 10th life. Enter Mark Gatiss as the 11th Doctor.
This would also be story number 200 and worth a celebration in itself.
40X2. The 4 Doctors
201 231108 By Terrance Dicks
Rumoured that an extra special story will be written for the 45th anniversary to be broadcast on the 23rd November 2008 starring Paul McGann, Christopher Eccleston, David Tennant and Mark Gatiss with special appearances by other guest actors.