Some FYI, to avoid plagiarism grief by websites and their authors, you should make it a habit to cite the source in the posts where you directly quote paragraphs. Easiest method is to post the link.
These countries move slow, so to have all of these countries to amend these treaties may take years.
I'm not saying descheduling could never happen, but it highly unlikely to happen in the near future as many hope. Both the DEA and FDA said they would like sufficient data on the different chemical compounds within the cannabis plant in order to make certain determinations. That is why I believe the DEA will open up some (possibly complicated) avenues for clinical research soon, but they probably won't make a decision (in the near term) that will make every cannabis proponent happy. As I said before, I think they will respect the states' rights and won't get involved unless individual(s) decide to go against the rules set by each state or even other countries. Canada did seize a shipment of medical marijuana oil from the US recently b/c marijuana isn't legal there yet. If the DEA wasn't going to do anything to change its stance even one bit, then we would've heard from them by now.