Maybe figure by the 2020 election that the USA will start the legalization babble during their campaigns? By 2021 I can see it be initiated. Would that make a 3 - 4 year "initial" run possible? This could be incredibly lucrative.
Not that I want this to happen. But if the democrats take control in the November elections this year and/or if Trump is impeached and/or if Jeff Sessions is replaced it would turn the tide towards USA favorable MJ