Bump, seems like an interesting concept.
I'll go:
South Africa - reaching the end of their reign with Steyn falling off, but their middle order is still pretty immense and their
India - immense batting lineup will ensure plenty of home wins. If they can find another gun quick in all conditions they could even reach #1 again.
New Zealand - reaching near the top, strong batting lineup and 3 pretty immense quicks, but are coming from a little too far back and the lack of Tests means more upsets than the other big sides.
Australia - when fully fit, utterly peerless. But too many quicks are frustratingly absent and their batting is still fragile.
England - declining due to their bowling being too raw. Good batting though and can do damage at home.
Pakistan - strong bowling attack, but sans Younis and Misbah they lack the big name batsmen to take them higher.
Sri Lanka - rebuilding. Mathews often seems like a one-man army though their other batsmen are often solid contributors, at least at home.
West Indies - strong bowling, but their batting is poor and often underachieve.
Bangladesh - improving, batting looks pretty solid and their spinners look OK, but they lack the quicks to win away from home.
Zimbabwe - may be struggling to play regular Tests by 2018.