There will be a lot of blood letting but most of it will be the settling of old scores among the not so rich. Unlike the French revolution, where people couldn't jump on a jet at the drop of a hat to the safety of a Caribbean island, the super rich and aristocracy will be missed but for how long their money and investments will do them any good is anyone's guess. As Steve's graph shows much of their money is in financial assets which are basically bits of paper with a rating from an agency to give them some credibility. Why anybody believes these ratings agencies I don't know as the last crash showed them to be either fraudulent or incompetent in their dealings.
More of their money is in property and shares which can easily be confiscated by a changed government. Given the propensity of many people on this board to nationalise anything and every thing this could the the fate of much that would be left of the wealth in the hands of the few. Whether that would actually transfer any real wealth into the hands of those who have no wealth now I very much doubt.
The alternative words to "The Red Flag" would kick in as it usually does in Socialist Utopias and a new "Elite" would be bought into being. The poor old underdog would find himself in the same position as now but with fewer crumbs falling off the high table of the New Socialist Big Brothers (and Sisters of course).
A revolution would just bring a crash as the social fabric fell apart and businesses with it. International dealings would freeze and with it trade and oil flows. without energy the supermarkets would run out of stock and people would start to starve. Rationing would be bought in and there would probably be the nationalisation of virtually everything to try and keep some order and some food in people's mouths. Biff and I would have our land and houses stolen by corrupt local officials and Adam2's hoard would be pilfered and handed out to the ungrateful and undeserving masses.
Things might get a little better in a few hundreds of years but In the mean time we would have all the joys of the revolution.