Paul O'Connell will take charge of Ireland for an interim period after Simon Easterby was drafted into Andy Farrell's British and Irish Lions coaching staff.
A 30-man Stormers squad left Cape Town on Tuesday for a vital two-match United Rugby Championship tour in Wales and Ireland over the next fortnight.
Ireland kept their slim hopes of Six Nations glory alive but were made to sweat before beating Italy 22-17 at the Olympic Stadium in Rome on Saturday.
Interim head coach Simon Easterby has made a few changes to his Ireland side to face Italy, including replacing flyhalf Sam Prendergast.
England scored seven tries to see off Italy 47-24 in a one-sided Six Nations encounter at Twickenham on Sunday.
France produced a stunning display at the Aviva Stadium to thrash Ireland 42-27 in their Six Nations clash on Saturday.