The egg info says this exactly: 'A mysterious Pokemon Egg obtained in ----------(?)
It looks like this Egg will take a long time to hatch.'
I even tried the Egg shop in Join Avenue and it said 'It will take a long time for this egg to hatch.' I got it from a glitch I made called "GTS Wi-Fi glitch" (It is when you change your settings so wifi is on but DNS is off, causing people to obtain free Pokemon). When will it hatch?????? (anybody know???)