Holden was seven months into her pregnancy with her second child, a boy, when it stopped moving at the beginning of February (11) and was later stillborn.
The star had completed taping the audition stages of the hit British show at the time of the tragedy, and pulled out of all work commitments to mourn with her partner Chris Hughes.
However, bosses at the U.K.'s ITV1 network are keen to shoot a final audition so they can have footage of Holden without her baby bump, and due to a tight schedule, have been forced to choose Mothering Sunday - when the U.K. celebrates motherhood - on 03 April (11).
A publicist for the star tells Britain's The Sun, "She'll be there."
Britain's Got Talent famously discovered Scottish singing sensation Susan Boyle in 2009.