Dortmund will have Emre Can and Ian Maatsen back from suspension while Sabitzer, who was out ill for several days, and Dutch international Malen, recovering from an injury picked up in last month's international duty, have returned to training.
"Marcel and Donyell both took part in training. We expect that they will be at our disposal tomorrow," said Terzic. "Marcel is feeling better and we need him in his form from before his illness tomorrow."
Dortmund have struggled in the league this season and on Saturday suffered a crushing 4-1 loss to direct rivals RB Leipzig who held on to fourth place, leaving them in fifth with three matches remaining.
The top four teams qualify for the Champions League group stage next season.
Germany is likely to earn a fifth spot as one of the top two in UEFA's coefficient table depending on the remaining results in European competition this season.
Dortmund's deep Champions League run this season, however, has kept fans hopeful of some silverware. Dortmund, Champions League winners in 1997, also met PSG in the group stage. The French side won 2-0 in Paris before a 1-1 draw in Dortmund.
"You could sense in the return leg that we had learned the lessons from the first game," Terzic said.
"Now PSG look to be at their very peak this season with only one defeat in 2024 and a good run of results. We will have to show an improved performance from that in Dortmund."
"We are confident that will show it tomorrow and next week in Paris. The clear goal is to gain a small advantage after the game tomorrow. We know we have to play at least 180 minutes at the highest level to have any shot at our dream," he said.
Terzic singled out Kylian Mbappe for particular praise, but said PSG posed an attacking threat across the park.
"It's the question you hear the most: 'How do you stop Kylian Mbappe?' But if you focus only on Kylian Mbappe, then comes Ousmane Dembele or (Goncalo) Ramos, or Vitinha, or (Achraf) Hakimi, or (Randal) Kolo Muani and all the others," he said. "They have unbelievable quality.
"If we want to focus on one thing, then we need to focus on the ball. If we worry about the ball - there's just one - then it's much harder for them to score."
Dortmund topped a difficult group earlier in the competition featuring PSG, AC Milan and Newcastle, before eliminating PSV Eindhoven and Atletico Madrid to reach the semis.
"Were we the favourites in the group? Against Atletico Madrid? I don't know," Terzic said when asked if his side will be underdogs against Paris.
"Maybe we're the team with less experience, but we may have the greatest hunger.
"When everyone digs in, not just those on the field and on the bench but everyone in the stadium, we've got a huge opportunity - and we need to take it."