I personally don't agree streams will always available. Encryption software and receiving equipment will catch up to a point where it will be simply impossible to stream a transmission illegally.
No it won't we are in a generation where the "bad guys" invest more money into breaking security than the good guys, the problem with streaming is under which legal jurisdiction does the offence occur and who prosecutes there are plenty of countries willing to turn a blind eye so streaming will be around for a while yet.