Conscious death and afterlife meditation Lets keep the rebirth concepts aside for a moment.

Is there a way we can die consciously? (i.e.) Being aware of our death.
And can we still meditate after death without a human body?

If yes, then in what thing we concentrate on. Let's say we are on concentrating on breath while we are alive. But after death we don't have breath and also we don't have any bodily sensations too...

What happens to the awareness after death, Does it still exist? Is the awareness eternal? Is the after life awareness is called soul? Do we need a human body to meditate?? 

I suddenly feel weird getting this idea? So is there any concepts based on this???
You might follow Buddha's example who entered the fourth Jhana, but it is only possible while you are aware of your peaceful death, the fact that you are dying slowly, so therefore - not very reliable advice.

Apart from that, only thing I know of about conscious death is Maraṇasati, which are only preparatory contemplations and meditations on death. These are closely related to Right effort. But it is not really same as meditating through death.

For Vajrayanic approach, Tibetans have the whole technique and special meditation practice on the moment of death and what follows (Bardo), which is divided in many phases of dying, also including the clear light you see at the moment of death. I presume you're not into Tantra so this is of little use though.