Minister for Transport Martin Cullen is expected to brief ministers on his proposals on aviation when the Cabinet meets tommorrow.
Speaking in Dublin today, Mr Cullen said the package of measures was nearly complete.
"These are now almost ready to be put to Government and I think the outcome will be very, very positive for Irish aviation," he told reporters at the unveiling of a new Luas smart-card ticketing system.
"I've only driven by one issue on this - what is best for Irish aviation, what's best for the customers and best for the employees out there.
"It's quite clear that there are good options there to achieve all of that."
After a series of meetings with unions and other interests over the past fortnight, Mr Cullen is expected to propose the sale of a majority stake in Aer Lingus.
He is also set to suggest the building of a second terminal by the Dublin Airport Authority. Such a move will be strenuously opposed by those in favour of the private-sector building a second terminal in competition with the DAA.
Ryanair chief executive Michael O'Leary last night said he would oppose a planning application for a second terminal at Dublin Airport and use any other legal options open to him unless the new facility was built by the private sector.
He claimed this showed the Taoiseach was unwilling "to upset his friends in the unions" and that "the Siptu tail is wagging the Bertie dog".
A final decision is not expected on the plans at tomorrow's meeting.