Longford Westmeath TD Peter Burke is expected to come away with a cabinet ministry.
Micheál Martin will be formally elected as Taoiseach later as a new Government forms, almost two months on from the general election.
The Dáil will sit at 11am with Cabinet Ministers to be appointed across the afternoon.
The out going Tanaiste has seven roles to offer his own party - Jack Chambers, Darragh O'Brien and Norma Foley are seen as locks.
With Charlie McConalogue, Mary Butler, James Browne, Dara Calleary, Thomas Byrne and Jim O'Callaghan all likely to be considered for the other roles.
On the Fine Gael side Simon Harris, Helen McEntee and Paschal Donohoe will all return to Cabinet - with Patrick O'Donovan and Longford Westmeath TD Peter Burke also heavily favoured.
That leaves him two spaces for promotion to a full ministry - Jennifer Carroll MacNeill, Martin Heydon, Hildegarde Naughton and possibly Alan Dillon are in the frame there.
Beyond the two parties leading the government, the Regional Independent Group is expected to pick up a 'super junior ministry' with Longford Westmeath deputy, Kevin 'Boxer' Moran thought to be in line.
Westmeath Waste Facility Remains Temporarily Closed
Laois Man To Be Laid To Rest Friday
Laois Community Safety Partnership To Start January
Midlands Community Groups To Get Communication Grants
Offaly Community Shop Highlights Services
Offaly TD Urges Action On Student Accomodation
Laois County Council Urge Continued STEM EU Just Transition Funding
EU Set To Unveil Housing Package As Fiscal Rules Face Relaxation
Midlands Driving Instructor Calls For Mandatory Alcolock System
Westmeath Family Into Final Of Ireland's Fittest Family
Motion Calls For HSE Investigation Into Wind Turbine Noise Passed In Offaly
Irish Farmers Head To Brussels On Tractors To Protest EU Policies
Man Arrested Over Alleged Assault At Midlands Prison
Emergency Services Attend Westmeath Car Fire
Unanimous Vote Supports €20m Midlands Hospice Project
Drink Driving Rider Arrested After Illegal E-Scooter Seized In Offaly
Drug-Driving Surge Sparks Calls For Christmas Crackdown
Revenue Seize Over €243k In Contraband In The Midlands
Midlands Hospice Planning Application Passed By Offaly County Council