Traffic impact will be decisive in determining whether developments of 700 square metres or more can go ahead.
Staff were taken on at the fastest rate for eight years, as retailers tipped the best Christmas since recovery from deep recession.
Since October 2002, which is when Festival Park opened, there has been no new centre of this type.
The new president of the Balearic Ports Authority has calmed the nerves of the small retail sector by ruling out a new commercial centre.
The government has included the tourist (or eco) tax in its budget forecast, even though it has yet to be decided when and how it will be implemented.