Now that the policy is in writing, states traditionally on the fence where the MMJ question is concerned will begin to seriously consider it. Some never will, but that is how the Constitution was written. The states are free to determine the issue separately.
While some states consider MMJ more carefully, other states on the forefront of the MMJ issue will begin to flirt with full re-legalization. California is a good example. With any luck, momentum will continue to build.
Like MMJ, the feds will resist re-legalization until they have no choice but to go along. The U.S. Constitution is very clear. And hopefully the appeals courts, which have not been cooperative, will find their chingaderros and hear some 10th Amendment cases.
Victory in this battle is ours. And the tide is turning. But the war is far from over.