It was to be expected when Londoners realised they didn't have to pay extortionate rents to work in the comfort of their own home. Some have even realised that they can get a 4 bedroom house on the outskirts of Canterbury for the same price as their London sweatbox. This has caused a 4% hike in property prices throughout Canterbury, which is ~£13,000.
If you rely on the Blean road (A290) to get to and from Canterbury, you're going to have a tough winter. Road closures to help make it safer are coming into play over the next few months, so you might want to look at the Clowes Wood through Tyler Hill as a better option. That being said, it's not a bad thing these safety improvements are being made. Multiple deaths over the years and a frankly terrible road surface will have not been pleasant for locals.
With Aldi being an absolute hit in Wincheap when it replaced the old Habitat a few years ago, they're bringing another to the City! B&Q in Sturry is downsizing so Aldi is going to take over a section in the east of the building. Work is looking to start in 2021, and completed by the end of that year.