I foresee a day when future generations will be mining today's landfills and dumps to recover the resources that we are wasting today. I do agree with #2, it is, and will continue to be, a process driven by economic pressures. Right now it may not be worth breaking down small items to reclaim metals that are still relatively cheap, but as the easy-to-extract minerals are taken up, and the cost of energy continues to rise, there will come a day when it will be worth everyone's time to recycle more completely.
A number of countries -Sweden comes to mind- have been working to build recycling right into products from the outset. I think we will have to think this way more in the future. I also think that we may see a return to the days of keeping items longer. Forty years ago, small appliances like toasters were very expensive to buy, and when one stopped working it was sent to a repairman. Now they are so inexpensive that people just toss them and replace them. I suspect at some point that will come full circle.