So, I've got a few challenges for you… with Alt!Doctor & Rose…. + the Master.
Challenge 1: Behind the masks
Pregnant Rose working for Torchwood.
There is an Alt!Doctor… but not Nine nor Ten, because Rose won't recognise him. Pete, Mickey and Jake are the only ones who now who he is.
I've read lots of fan fictions were Ianto was Torchwood's boss, so let's make it fanon (lol).
Mr Saxon is President … and has all powers on Torchwood…
Challenge 2: Theta
Rose meeting a very young and careless, still student and friends with the Master version of Alt!One.
They fall in love… but the Time lords don't like it… at all.
Challenge 3: The Enemy within
Rose has left Torchwood and is now a waitress in a bar in San Francisco.
She has a flat mate called… Grace Halloway.
It's a bit like re-writing "The Enemy within"… + Rose.
You're free to let Grace kill the Doctor… or make Rose save him.
Challenge 4: The Time War
In a way or in another (you are the writer, so you're the master), Rose happens to be on Gallifrey… during the Time War. Is it the real Gallifrey, the one from her world or the one from her new dimension? Or is she in another world, different from the two she knows? And can she use the very few information's she knows to help Lady Romana and the Doctor to save Gallifrey from its dreadful fate?
The Master will be back from the grave… and may or may not help Rose and the Doctor.
Challenge 5: The Big Bad Wolf
So… I'm going to surprise you, but after reading "Voltentibus Annis" and watching "Life on Mars", I think I'd like to read another Rose & The Master fic…
You can add Alt!Doctor if you want… or the Doctor from our world…
It can be an Alt!Master or our Master (lol…)… you choose.
If you're not inspired, here is a little help.
There was a war and everybody is dead… except Rose… who become a Time Lady … or an immortal, like Jack, you're free. Now, the only one who can help her is the enemy of the man she loves… the Master.
You can use it if you want, but you are free.