The Parliamentary Voting System and Constituencies Act was introduced in the last Parliament, reducing the number of constituencies in the UK Parliament from 650 to 600. A Boundary Commission review supposed to commence in 2013 but was halted. This was re-launched on 24 February 2016 and the Commission issued draft proposals for Parliamentary constituency boundaries on 13 September 2016. The final report is planned to be available by September 2018 and, if this is agreed by Parliament, will take effect at the next scheduled General Election in 2020.
The current Corby constituency is already 1500 electors above the upper limit (80,049) for a constituency size. The Commission has recommended, in its draft proposals, the transfer of the two wards of Irthlingborough Waterloo, and Irthlingborough John Pyel to the Wellingborough constituency.
The Commission is currently running a public consultation concerning these proposals.