Gordonians will be back in league action tomorrow when they can go six points clear of second-placed Caithness.
Caithness have no game in a reduced programme in Caledonia 1 but Gordonians must pick up maximum points against Glenrothes in Fife if they want to extend their lead.
President Jim Sugden said: “This is a huge game for us against the fourth-placed side but after our good win in the Caledonia Shield we are pretty confident.
“We’re looking forward to the challenge of being in with a shout in two competitions. I am pleased to note that we will meet Aberdeen Wanderers in the semi-finals, assuming they can beat Dunfermline on Saturday. Either way, we have a home tie.”
Aberdeen Wanderers play their rearranged shield tie at Groats Road against Dunfermline boosted by the prospect of the derby game against Gordonians in the last four.
Wanderers coach Fraser Burr said: “‘Now the draw has been made, we have an extra motivation to get into the semis, but are sure to find Dunfermline well up for it.”
Glenrothes meet Strathmore in the other shield semi-final.
Ellon will be lifted by the draw for the Caledonia Bowl.
Should they beat Moray in the rescheduled quarter-final tie they will have a home tie against Shetland.
Ellon director of rugby Gareth Kemp said: “The idea of getting to a final is very appealing.
“But Moray might have something to say about that. They are top of Caledonia 2 North (west).”
In the other semi-final of the bowl, RAF Lossiemouth are at home to Aberdeen University.
The semi-finals of both competitions will be played tomorrow week.
In Caledonia 3 North (east) tomorrow, leaders Garioch travel to Deeside and second-placed Banff entertain Aberdeen Grammar 2nds at Duff House.
In Caledonia 3 North (west) Lochaber meet Stornoway at Fort William.