I don't think it will illegal.
I think Bitcoin is illegal because government should not allowed in betting but this coin is Decentralised cryptocurrency so many investors are involved in gambling in this forum. This make huge profit or loss whatever happens in this platform. So this is risky and insecured investment.
one of the reasons some countries do not legalize bitcoin. Bitcoin virtual wallet security system is considered almost perfect, but that does not mean I have a gap. When opening an account, users will get a special line of code as a secret key. This code can be stored in a digital wallet that can be accessed via smartphone, PC, or laptop.
But if this digital wallet is lost, hacked, or hit by a malware attack, all the bitcoins you have will be lost forever, without allowing restoration.