Since the season is over, I thought I'd give an overview of the Dortmund academy.
2000: Almost nothing left here. Raschl is part of the first team and has impressed in preseason and friendlies, but I think he may be the last field player on the depth chart under Favre. He hasn't played all season. I'm not sure he's good enough to make it at Dortmund, but it'd be nice to see him get a runout. He'll probably go out on loan somewhere next season.
2001: Unbehaun missed the first two months of the season due to injury. He's co-third keeper right now, but the other guy isn't a real prospect and is there more for training, so he's third keeper in the real pecking order. I think he's going to need to go out on loan next season. I think there's a good chance that he could come back to Dortmund in 2-3 years and get playing time because I do think he's going to be a good keeper, but he's not going to be given playing time anytime soon.
Outside chance for Pherai to get into the first team. He's supposedly going to be on the first team next season, although I've not seen an official announcement. But he'd likely have a similar spot to what Raschl had this season. I think Reyna skipping right over him into first team playing time in the second half of this season was the writing on the wall for him. Bakir isn't bad either, but he's supposedly going to be playing with the second team next season, which is indication he's not viewed as an eventual first team guy.
2002: Obviously Reyna is now playing with the first team. He plays nearly every game, but hasn't yet started. He was supposed to start a few weeks ago, but got injured in warm up. Favre is a big fan of his. I don't know if he's yet justified all the playing time and trust Favre has in him, but he also hasn't looked out of place. The biggest challenge for him will be playing time, especially if Favre isn't the coach next season. There are still a lot of options in front of him that are better than him.
Bafounta has been injured for over a year now. It's too bad because he was supposed to be very talented. I don't think anyone knows what his current game is like because he hasn't played in so long. He still has another year in the U19's to prove himself, if he can get fit. Hetemi had some early hype, but hasn't been as good as expected. I think he has a chance to get a first team contract, but doesn't look like the caliber of player that will be given anything but a training role with the team. Knauff is also pretty good, but probably not good enough either for a real role in the team.
2003: There's no one great in this age group that'll definitely be a first team player. The best is probably Lutke-Frie, who is very versatile and productive. I think he'll definitely at least get a first team contract, but he might not be good enough to get games. Semic, Gurpuz and Fink are some other talented players. None are elite guys, at this point, but we'll see where their games are at in another year.
2004: Everyone knows about Moukoko and Collins. Moukoko is probably the most hyped youth player in the world in any age group, but Collins could be better eventually. Both players are going to be given a chance to break through at some point. Moukoko might get a shot sometime next season. Collins is probably more likely to get games the season after that. Cisse, Bamba, Mrosek, Walz are some other promising names in this age group. It's too early to say whether they'll be first team players.