User blog comment:Omega natsu2/Chapter 377: The Sky Dragon's Imperial Wrath, Predictions./@comment-112.207.109.20-20140324085818/@comment-7418318-20140324094436

Yes others have noticed this too, but I doubt it will be the case of the upper two rows.

Lisanna vs Racer, Juvia vs. Angel and Doranbold vs. Jackal among others seem rather unlikely.

And right now it also looks like it's going to be Keith vs. Gray, rather than Keith vs. Gajeel and Silver vs. Gray.