Davros In New Doctor Who Teaser Trailer?

The recent, second Doctor Who teaser trailer has a mysterious voice that is never revealed. The Dalek like voice suggests Davros. The Dalek creator was last seen in The Stolen Earth, left on the burning crucible after failing to set off the deadly Reality Bomb.

Though his fate was never confirmed it seemed obvious he burned with the Dalek army and Crucible; Or is that just what were supposed to think? Is it possible he could have escaped the burning ship as he did in the Time War? The anger and hatred towards the Doctor certainly sounds like the Dalek Emperor;

I see into your soul Doctor. I see beauty, divinity, hatred.

The teaser was released after confirmation that the Cyberman will be returning, but will Davros be making an appearance as well?

What do you think? Tell us in the comments below!