Ok woah so in the latest update (6/24/15) there's this part that shows this weird skull thing dripping ooze and all these signs are popping up around it. I guess it's the mother grub skull but it just feels weird that there are signs other than the actual zodiac signs floating around. So my question being, what the heck are those signs?

Those would most likely be some of the other Jade blood signs that Hussie created for Hiveswap.