The local elections could be very interesting in this seat and the Tories could well be under pressure in wards like Larkswood and Hatch Lane along with losing their remaining seats in Valley and Hale End & Highams Park. The only safe Tory seats on the Waltham Forest side are Endlebury and Chingford Green. In Redbridge, whilst Monkhams is safe, Church End could be very close. Expect Labour to start working this seat vigorously and it is clearly a seat that is moving rapidly towards Labour as the southern end increasingly gets Walthamstow overspill and the population make up changes. Boundary changes, if they happen, are unlikely to be favorable to the Tory given the seat is already undersized. I would be very surprised of IDS stood again.
I don't think the special enquiry team exactly had their work cut out tracking down someone who boasted of his fraudulent voting behaviour on Twitter... Truly social media is often a great hole in the ground inviting the stupid to throw themselves in. And a good thing too.