Last year, an overhaul to slash the number of MPs from 650 to 600 and make all seats roughly the same size was halted after the two coalition parties came to blows over constitutional reform.
The boundary review sparked controversy in the South West as it would have seen the advent of a constituency split between Devon and the Duchy – which was fiercely opposed by those prizing Cornwall's independence.
However, the plan was only delayed until after next year's general election and commissioners are expected to look again at the map in 2016.
Ahead of the process, an academic report is published today that suggests "mass disruption" can be avoided.
It found that Cornwall could retain its six MPs so long as the strict rule where each constituency must differ by only 5 per cent either way was ditched.
Through computer modelling, authors Professor Ron Johnston, Professor Charles Pattie and Dr David Rossiter of the McDougall Trust found that if the leeway was increased to 9 per cent the historic Cornwall border could be retained.
The report states: "With a House of Commons comprising 600 MPs, it is possible in most of the UK to identify a substantial number of possible constituency configurations without substantial crossing of major local authority boundaries with a tolerance of +/-8% around the UK quota. With a tolerance of +/-10%, such an outcome is feasible throughout almost all of the UK."
Existing constituencies vary massively, with some Welsh seats containing as few as 40,687 voters while the Isle of Wight constituency contains around 111,109.
Under the plans, the "Devonwall" MP would have represented a constituency that included Bude in North Cornwall and Bideford in West Devon.
Of the 18 MPs that represent Devon and Cornwall in parliament, only four would have escaped with no changes to their patch.
Nick Clegg's Liberal Democrats initially supported the changes as part of a package of constitutional reforms, but later said his party would try to delay the review in revenge for the Tories killing off plans to reform the House of Lords.
Scores took part in an anti-"Devonwall" demonstration on the Cornwall banks of the Tamar, and Prime Minister David Cameron was criticised for a flippant attitude towards the Cornish identity when he quipped on television: "It's the Tamar, not the Amazon, for heaven's sake."
