The Government party leaders will hold discussions tonight ahead of tomorrow's Cabinet reshuffle.
Micheál Martin is to be replaced by Leo Varadkar as Taoiseach tomorrow after a Dáil vote - the first time the position has rotated by agreement.
Other changes took place this morning when Fine Gael's Jerry Buttimer replaced Fianna Fáil's Mark Daly as Cathaoirleach of the Seanad.
Tonight, for the first time the Taoiseach is expected to tell his coalition colleagues what ministerial role he will choose when his time at the helm of Government draws to a close in the morning.
It is widely anticipated that he will become Tánaiste and Minister for Foreign Affairs and Defence.
This would set in train another change at Cabinet raising the possibility that Simon Coveney could become Minister for Enterprise.
It has already been agreed that Paschal Donohoe will move to Public Expenditure with Michael McGrath switching to Finance.
The Government Chief Whip role will also change with Fine Gael's Hildegarde Naughton and Brendan Griffin viewed as the frontrunners to take over from Jack Chambers.
A new Attorney General will take office tomorrow also.
Apart from these well flagged changes, it seems at this point that the rest of the Cabinet could remain the same.
The Green Party has already confirmed that its senior ministers will stay in their current jobs.
A Sinn Féin spokesperson said the party's Oireachtas group met this evening and endorsed a proposal from the party leader not to nominate for the position of Taoiseach tomorrow.
"Nothing will change until we have a change of government. Arising from tomorrow's Dáil proceedings, there will be no change in policy and no change in the ability of this Government to deal properly with the issues we are facing. We need a general election, not a rotation in the office of Taoiseach from Fianna Fáil to Fine Gael," the spokesperson said.
"The failures of this Government, on housing in particular, are inexcusable. We are now seeing the impact of the housing crisis on health, on education and on the economy," they added.
In the Seanad today, the father of the House David Norris presided over what he termed the orderly transition of power.
This resulted in the elevation of Fine Gael Senator Jerry Buttimer to Cathaoirleach of the Seanad with Fianna Fáil's Mark Daly bringing the curtains down on a high-profile two-and-a-half years in the politically prestigious role.
