They have probably been having meetings about this for years...and i can pretty much guarantee that money from big pharma and tobacco is the reason pot is still federally illegal. As soon as they can put together a plan they will start building an infrastructure to make billions of dollars off of this...and then pay a shit ton to get a bill passed to get it legalized.
And i said above that they would probably hire scientists and botanists to find ways to make disease, mold, and pest resistant crops like they have done with tobacco. And I'm sure what ever they are pushing out with have all sorts of pesticides and herbicides on it along with something to preserve it. Either way it's going to be messy...and the lucrative mmj industry in California will be gone. Make what you can now...and make a backup plan when this is gone.