But architect Hugh Broughton has been forced - for the second time this month - to deny that the scheme will not go ahead.
Broughton told the AJ: 'In order to deliver the project on budget some minor changes to the design are being investigated.
'As the scheme is currently being costed it would be inappropriate for me to list the changes that are being considered.'
The denial comes after rumours emerged this week that Broughton's Halley VI had been put on hold, in favour of the scheme being assembled from the component parts of an earlier research station.
Earlier this month it emerged that the project had been delayed for a year because initial costings had exceeded the client's original £19 million budget.