Agreed , you can bet thats what will happen , governments wont let that slide under their nose , it takes time though . Technically the US government can call the show off by declaring owning a bitcoin as a felony .Sorry to be a wet blanket BUT
1. The costs in electricity are enormous and powering up nothing. Let them buy their own generators.
2. Criminals are around the cryptos like moths to a candle, laundering dirty money etc.
IT IS TIME THE GOVT BANNED IT !!!
And when this crypto space becomes regulated you can bet their will be more advanced and regulated coins out there , if blockchain is the next hot thing then microsoft apple google ... etc will have their own coins , and current coins will cease to exist - almost - .
Keep an eye on tether , its a disaster waiting to happen , most crypto exchanges trade coins against tether not against the $ , tether could be the next ponzi scheme .