The upgrade is at no extra cost. The annual price rises will happen if you take the upgrade or not.
As to other providers catching up, it ain't going to be happening soon as the DOCSIS network VM use is due the next big thing (DOCSIS 3.1), which is already out in some countries and likely being trialled I would of thought by VM somewhere.
DSL will lag behind (aka all the other providers) until FTTP (fibre to the property) becomes standard installation for all providers.
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