1Gbps will be great but give it another 5 years and 2.2Gbps+ services should be available at a premium.
10Gb symmetrical has been available to residential on several alt-net providers for a while now, it’s more of a PR/heading thing at this stage than something customers are pushing for, but it is a thing in a handful of areas. VM are currently testing 2.2Gbit on a small deployment down south, DOCSIS 3.1 brings a lot more options to the table for cable, it’s also cheaper and easier to upgrade the CPE than having to dispatch an engineer to swap out a GPON as OR etc. will have to do, unless VM ditch RF altogether and decide to re-pull everyone on fibre, but that’s a long way off thanks to RFoG. OR however are still installing GPON’s that cap at 1Gb, although they are moving to the NOKIA kit from memory ‘soon’ (read they have a load of the old ones to use first), that should open up future upgrades, but it’ll be a long time before they do.
Realistically with gigabit you are at a natural point of everything that needs it having the ability to use it, it’s the standard for routers, PC’s and pretty much everything else. The next phase will be greater than gigabit WAN (Virgin already do this with the Gig1 service, so multiple users can saturate the WAN, but it’s always more than a single user can manage, but gigabit LAN followed by multi-gigabit capable LAN options on the switch side are coming. The issue being pretty much all hardware needs upgrading to support it on the client side, and even the stuff that supports it can struggle to make significant use of it. 10Gb means over 1GB/s of writes, NVMe’s (depending on OEM and product line) tops out at 2-4TB, assuming you can find a remote host capable of saturating the connection, you can do 1TB in under 20 mins easily, which brings us to cloud storage and merged file systems where your local ‘fast’ storage is used as a cache for cloud based storage for things like large files (media being the perfect example), but that’s another story.