[TheyCallMeBruce]

Let's say we approach this as a possible hijacking, and landing the plane on an island. Let's say all that is possible and the plane is now on some island. I think Malaysia would be the perfect country to hijack the plane from.

Malaysia is devoid of any crisis management. Their ruling elite is woefully incompetent in information gathering and coordination. Malaysian government is also known for keeping information from the public (which is working great for them now, since the whole international community's eyes are on them, and do not stand for that kind of crap).

If I were to hijack a plane. I would think that Malaysia would be one of my top choices. Hijack the plane, turn the transponder off, and take advantage of Malaysia's uncoordinated inexperience. In the confusion, fly the plane towards the indian ocean and land on one of the islands. Take advance of further confusion and misinformation for days and days. With 5 days of allotted time, you can probably plan a way of hiding the plane and getting ride of the passengers.