Fluidata has indicated that Digital Region who run a FTTC network in South Yorkshire are to carry out upgrades to their hardware in some areas, with the benefit that those with high speeds currently will see even faster speeds available.
While ISPreview has not found any specifics, looking at the possible options and that Digital Region was ahead of the curve compared to Openreach on deploying VDSL2 profile 17a speeds, we are willing to bet the upgrade will be the deployment of line cards capable of running VDSL2 profile 30a.
Profile 30a actually offers the biggest speed boost on the upstream speeds, with lines under around 500m benefiting from significantly faster upstream speeds. Only lines shorter than around 200m will see improvements to the downstream speeds, these short lines could see connections at a symmetric speed of 130 Mbps. VDSL2 manages the spectrum it uses differently to how ADSL and ADSL2+ used to, with the older services the upstream was confined to the lower end of the spectrum, with VDSL2 there are alternating blocks of downstream and upstream bands, so the extra 13 MHz of spectrum that profile 30a uses is able to be used to boost upstream. A note for the ultra observant, the UK used profile 8c, which was same banding as profile 8b, but has a lower power level hence why when VDSL2 was in its early stages of deployment 40 Mbps was a common speed point.
The speed profiles are taken from a white paper by Aware Inc. and available on the ICT Regulation Toolkit site, that is a joint production between infoDev and the International Telecommunication Union. As with all speed profile graphs the reality in the real world can be different, sometimes better, sometimes worse so it will be interesting to see exactly what happens to VDSL2 speeds in South Yorkshire.