o Only a brief Homura-Kyoko skirmish, if at all. Homura has no reason to fight Kyoko, and even less reason to avenge Sayaka. Her only priority is to prevent a Madoka panic-contract. Kyoko might try a few swings on Homura, but she's smart enough to back off once she realizes that Homura is no rookie pushover.

o I expect Sayaka's mood to become more sour and aggressive compared to her normal behavior. The preview indicates that she will harbor a grudge against Kyoko and seek revenge. The increased stress and pent-up frustration, along with her massive expenditure of magic in her fights against the familiar and Kyoko will begin to pollute her Soul Gem.

o Likewise, at least in the long run, her desired love with Kamijo is not going to work out. Whether it will be a gradual estrangement with him, or a big bang (Kamijo rejecting her, or Kamijo dying by outside factors) remains to be seen. For this episode, if they go the path of gradual estrangement, I could see their relationship deteriorating, compared to the highlight in ep5.

o Madoka will find herself between a rock and a hard place. She will see that Sayaka is struggling, but she will be unable to really do anything about it. It seems that Sayaka will reject any of Madoka's attempts to make her drop her Kyoko grudge, and she lacks the power to intervene directly. So she'll try to appeal to Homura again. And while I doubt she'll say yes, it might help whacking a chink into her armor.

o Of course QB will know what to do. If I was him, I'd probably run a "working together as 2 MGs would help Sayaka alot" guilt trip ^_^;

Sadly, I missed the very beginning of the episode, so I don't know if Homura's power was clarified. Damnit. Thankfully, I was right on time to catch another hint that Homura is from the future. I mean, really, it's pretty much confirmed now.

As I suspected, Kyubey eats grief seeds (from the mouth ON HIS BACK). He literally feeds on despair.

Edit: yeah, Homura's power is either brief time stop or teleportation over short distance. As everyone predicted, something bad happened to Sayaka, but I bet no one predicted who would be directly responsible...

And oh god, I was right. Soul gem = soul of the bearer. Their bodies are just empty husk now. Even Kyoko is outraged by these revelations... I'm not 100% sure Kyubey is evil, but he is without a doubt completely amoral. Where will the story go from there? It doesn't seem like Kyoko will remain an enemy, and there's no way Madoka will make a contract with Kyubey after hearing this.

Magical girls are liches, and the soul gem their phylactery. In fact, it's worse than that, because liches don't die if their phylactery are removed from their person.

Is sayaka still sayaka or has she forgotten who she is?

If MG overuses magic power they became witches, now confirmed (stated by QB, supposedly) EDIT: [it seems this wasn't confirmed after all], Magical Girls arent humans.
Also almost confirmed that Homura is from future, she adverts Kyouko that something awfull will happens in this city.

Homura is a jumper. She seems to be able to teleport, but only for a short distance. Hence why she has to teleport a few times while running to save Sayaka