The icons that could be heroes that was previously posted also could be bosses which are being implemented in the near future.
Also, maybe that magic spell will be implemented along with guilds? Looks like it could do something with them because of the flag. Or maybe it's just me who thinks that.
Edited by guoyuus at 10-16-2013 05:43 PM
I think that's probably a guild magic. Each clan can choose a unique "emblem", which is a magic that can be used by clan members. The magic can be upgraded with gold bullion from guild member donations. Some of these info are guesswork from TW forum.
Here is another example of another guild magic / talent?