The advisory group, known locally as the 'Three Wise Men', is currently made up of Richard MacCormac; former DEGW architect John Worthington; and David Mackay, who works in Barcelona.
The AJ has learned that the number of experts in this group of backroom design champions is to grow to four, with the arrival of new faces from over the water to replace those who are leaving.
Outward bound are MacCormac and Mackay, while MAKE chief Ken Shuttleworth, CABE design reviewer Kelvin Campbell and former MacCormac Jamieson Prichard director David Prichard will be brought in.
There are also rumours that Jan Gehl, the Danish urban design guru, may also be joining the team which, over the last three years, has advised Dublin's city manager on both policy matters and key planning applications.
If true, Gehl's appointment would not come as much of a surprise - the Dane is already working on some major regeneration projects in the Irish capital.
The panel was originally inspired by a system used by Barcelona's governing authority and is expected to cast its eye over a raft of huge development proposals in the coming months.