As they mentioned it is a new holiday quest. You get eggs kind of like fps. There will be a bar just like the fp bar added to your screen. You can buy reward items above with eggs. The items are as follows:
avatar,
avatar,
random bp from your current age or below,
Rogue Hideout-Military unit,
Wishing well- produces a random item- fp, coin, good, medals, supplies, or diamonds,
Watchfire- +4% defense boost
1 Rogue unit,
5 fp pack,
10 fp pack
This is someone else's youtube video of it-[video=youtube_share;2-xscqO4lL4]http://youtu.be/2-xscqO4lL4[/video]