are they going to shift anytime soon and what is suppose to happen
I wouldn't be holding my breath waiting for them to shift. They'll shift, but at a glacial speeds They've shifted in the past and they will shift again. But I'd look for that to happen in the next hundred or so generations. However, the difference between true north and magnetic north has been changing much more rapidly in the past decade or so. Since no one was around the last time it happened no one knows what will happen when it finally does switch. My guess is that Earth will not be a pleasant place in which to live when it is actually changing. Sun spots are so much more interesting and those are affecting us now.
The magnetic poles have shifted on a regular basis in the past (this has been documented by analyzing old lava flows and rocks). We don't actually know exactly what happens when they shift (because the last time it happened was not documented in writing), but there is evidence that pole reversal causes severe weather changes over quite a long period of time. We are due for another pole reversal, but that means sometime within the next 500 years or so. It is possible (I am not saying likely, mind you), that some or all of the weather changes we are seeing now are related to the next pole reversal. That is one reason that I laugh at people who claim to know exactly why weather is changing. It changes due to a great variety of different reasons. Pole reversals happen very slowly over hundreds of years, and are not sudden events. I don't believe any stories that claim to know that there will be a sudden pole reversal in 2012.
Magnetic poles are generally stable in man-made and natural magnetic materials but it is possible for them to change over time. .
