It's impossible to predict when it may happen. It could be months or years, but what I know for sure is that they will have to do something about it because without a clearly defined legal status of crypto the government is deprived of significant tax and other receipts. I can picture them sitting at their desks wrecking their brains trying to find a way to capitalize on crypto transactions. Don't worry, I believe in them because they must be equally interested in taking advantage of the crypto, so rest assured they will come up with something soon.