Yukino and Lucy since they have not their key, they cannot fight, so they will not fight, they will stay back, even if in the truth there is the possibility that they will be kidnapped and taken as hostages.
I don’t know what Wendy will do, she could fight as a support (just like against Hades she will increase the power of the other fighters), but she could even stay back, she could protect Lucy, Yukino and Arcadia, or she could heal Arcadia, if this will happen one between Mira and Lily will stay with her as a bodyguard.
I don’t think that this new fighters will be humiliated, at least not in one chapter, because for that would be enough to use real wolves.
Infact even if they will lose this will happen in few chapter, because so at least we will be able to see their power a little bit.
Perhaps two fighter wil be defeated in the next chapter.
I believe the one who could lose will be the men who uses the acid and the one who has a mohawk hairdo, the two men that showed their magic for first.
There is the possibilities that the men that uses the acid could be the acid’s dragonslayer, while the one who has a mohawk hairdo I believe that he can use the gravity, he is able to decrease the force of gravity, but I think that he just like Bluenote or the stellar spirit of the scales he can even increase it.
If my speculation will be correct I believe that the mohawk hairdo could be defeated by one between Mira and Lily, infact since they could fly they will not be affected by his power, or at least less affected.
The acid’s guy will be defeated by one between Mira and Natsu, even if I believe he will be able to damage them, even if I don’t think too much.
In the truth I would like if the acid’s men before of lose against one between Mira or Natsu will be able to defeat Lily.
Or otherwise Lily could be defeated from the boss, from the knight in armour, if Natsu will fight at first the acid’s men or if he will stay to protect Wendy and the others (that is very unlikely).
I would like this since the leader seem to use some weapons just like Lily, and beside even Lily was a knight in Edolas world.
Anyways I hope that Natsu’s group will defeat only two opponents, while the others I hope that will defeated from Crime Sorciere.
Infact I really hope to see them fight, they will fight the two remaining girls and their leader, I hope this because otherwise their appearance to the tournament would be useless.
I think than that would be good because both of the two team have reasons for fight the other team.
Infact the Garou Knight sentence to death the criminals, and Gerard, Meldy and Urtear are infact wanted criminals, while Crime Sorciere goal is to erase all the darkness, and these Garou Knight are the darkness in Fiore’s kingdom.
If this will happened while we would have this fight Natsu’s group will be able to escape.
In this scenario Gerard will surely fight the leader, while I am not too sure about Meldy and Urtear.
Infact I think that Meldy will fight the woman that appeared from the flower, while Urtear will fight the woman that uses the papers.
In this fight I think that at the beginning Urtear will seem is danger, since I don’t think that with her crystal ball she will be able to change the time of all the piece of paper (and beside if she will turn them back in trees her visual field will decrease, since the trees will hide both the piece of papers and her opponents), but then she will use her Ice magic and will froze all the piece of papers at once, just like Gray did with Lluvia’s water.
In the truth there is the possibilities that Meldy will fight the one that uses the papers (that would be good because that woman is very similar to Urtear), if it so she will be able to pierce all the piece of paper with her swords.
In this case Urtear will fight the woman with the flower, in this case she could change the time of the flower, but I would like if there will be a battle between real flower and Ice flower (just like the first spell that Urtear uses against Gray
http://www.mangareader.net/fairy-tail/240/19).
In the truth I think that there is the possibilities that the flower of that woman will sprinkle some perfume, some essence that will make faint the enemies, just Ichiya’s perfume with Jura at the beginning of “Oracion 6 arc”.