Well, if this episode has been just a prelude, then the next Shana Yuji confrontation is going to be pretty awesome, since Shans has got a lot stronger compared to before.
It also seems that Yuji has been holding back a little, during the time where he kidnapped Shana, but in their future confrontations I doubt that's going to be necessary, but we will see about that in the next few episodes.
Apart from that Bal Masque is in a pretty tough situation, but if they manage to protect the God Gate until Yuji returns then, I'm quite sure that the appearance of the SoF is going to be enough to reverse their situation.
On a bad note, it seems that the next episode is going to be about Satou and Margery, which is a little disappointing, since the situation around Serieden is definitely more interesting at the moment.