The Ulster Club ties involving Glenswilly and Burren have been put back to 13 November because of Michael Murphy and Kevin McKernan's involvement in the International Rules series.
All four quarter-finals were originally scheduled for 30 October.
Glenswilly will now face Latton at Ballybofey on 13 November with Burren meeting Roslea at Enniskillen.
On 30 October, Crossmaglen play St Gall's at Casement with Ballinderry facing Dromore or Clonoe at Omagh.
The winners of the St Gall's and Crossmaglen clash will go on to the opening semi-final on 13 November against Dromore, Clonoe or Ballinderry.
The second semi-final will take place a week later with the provincial decider scheduled for 27 November.
While Murphy and McKernan are set to be available for Ireland's International Rules tour, the participation of captain Stephen Cluxton, Darran O'Sullivan and Colm Begley down under remains in some doubt.
Cluxton and Begley are scheduled to line out for their club Parnells in the Dublin SFC quarter-final against Ballymun Kickhams on Saturday - the same day that the Irish squad departs for Australia.
If Parnells do win, Dublin keeper Cluxton and Laois player Begley could be forced to pull out of the Ireland squad.
As it stands, O'Sullivan appears to be out of the Ireland tour as his club Mid-Kerry are scheduled to play in the Kerry SFC final against Dr Crokes on 30 October.
The first Test takes place in Melbourne on 28 October with the second game at at the Metricon Stadium on the Gold Coast on 4 November.