I'm pretty sure the answer is no, you can't get early deployment because it's all driven by a roll out of DOCSIS 3.1 technology, area by area. On the plus side, the roll out is supposed to be complete this year "by 2021", against that I have to say that for any normal use you'll be pushed to see any real world difference between 1 Gbps and 500/600 Mbps.
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