UEFA is likely to confirm Ireland and the UK as hosts of Euro 2028 today.
The joint-bid - featuring five football associations - is the only one in the running.
That's after Turkey pulled out last week in favour of a tilt at hosting the tournament with Italy in 2032.
A number of FAI officials are in Switzerland along with their counterparts from Northern Ireland, England, Scotland and Wales.
They'll make a presentation to UEFA later.
Meanwhile John O'Shea is expected to remain as a member of the Republic of Ireland senior men's team coaching staff.
The former Manchester United player is poised to link up with Wayne Rooney, who is in line to take over as Birmingham City's new manager.
But O'Shea will combine his roles with Birmingham and Ireland.
The Republic of Ireland squad will train today, ahead of Friday's Euro 2024 qualifier against Greece in Dublin.