After the blood and thunder tie at the Den ended goalless on Sunday, the two sides must do it all again this Wednesday night at Ewood Park, kick-off 7.30pm.
"Obviously before the game I wouldn't have wanted a replay but we still have a chance to go and play at Wembley," said Appleton.
"I'm sure both football clubs are delighted that they've got a second bite of the cherry and they'll be doing everything they can to get through the tie.
"The thought of playing a semi-final against Premier League opposition is a huge incentive for us."
Tickets are priced at £18 for Adults, £12 for Seniors/Students and £6 for Juniors under 16.