Supporters will be back at Goodison Park for the final home game of the season but may have had second thoughts about returning given Everton could fall to a record 10th home league defeat in a campaign, which would be their most since 1993/94.
The Everton manager has spoken of the need for a "good attitude and spirit" against Wolves after Sunday's disappointing 1-0 loss to Sheffield United. Nevertheless, their chances of qualifying for the Europa League are minimal as they sit three points behind sixth-placed Tottenham Hotspur and seventh-placed West Ham United with two games to play.
"I think the key point is the attitude and strong reaction that we want to show," Ancelotti said. "It will be important to show them [the supporters] a good attitude and spirit. We don't have a lot of possibility but we still can have the dream of Europe - only if we are able to win these two games."
Everton have only collected 18 points at home this season compared to 37 away from Goodison, and Ancelotti described the home form as "unacceptable".
"Away, all the time we showed strong spirit and sacrifice," he said. "Maybe this is the reason. When we were not focused and so forced to sacrifice we had a lot of problems.
"It is difficult for me to explain this double face of the team. I'm not a magician, I'm only a trainer. We have to improve the qualify of the squad for next season, this is for sure."
Wolves, meanwhile, are safe from relegation and unable to qualify for Europe. However, this has been an underwhelming season for Nuno Espirito Santo's team and they are set for their lowest finish since being promoted back to the Premier League three years ago.
Still, the Wolves manager is looking forward to the return of fans for the final two games: "It's huge. Finally, finally, finally, we're going to have Everton fans then we're going to have our own fans at Molineux.
"It's a big, big, big moment for everybody, the returning of fans is the best thing that can happen to the game and it looks like it's going to happen. Hopefully, next season is going to be better than ever."
Everton pair Yerry Mina and Joshua King are fit and available to face Wolves.
Mina has recovered from an adductor injury and King has overcome a minor hamstring problem. Jean-Philippe Gbamin is Everton's only absentee.
Wolves are still hopeful that striker Raul Jimenez will be able to return from a fractured skull before the end of the season, but Nuno admitted that there are a lot of "boxes to tick" before that happens.
The Mexican is undergoing medical tests to decide when he can play but is unlikely to be involved on Wednesday.
How to watch
The game, which kicks off at 6.00pm on Wednesday, will be available to watch on Sky Sports or can be followed on the radio via talkSport.
All of the in-game and post-match coverage and analysis will also be available on Vavel UK.