Over the weekend, Twenty One Pilots sent an email out to everyone subscribed to get their updates with this GIF and the message "ARE YOU STILL SLEEPING?"
This comes exactly one year after their final set of Tweets, which were these:
If you pay attention to the background in the messages, it's a closing eye -- which makes sense since the messages are talking about going to sleep. AKA hiatus. It also makes sense that the GIF they sent in the email is an eye opening back up, which means...they're coming back!
PLUS, someone took it a step further and actually looked up source code behind the GIF:
I took it one step further myself and wrote down every randomly capitalized letter, which reads as ESTISUP. "Estis" in latin is "was" -- so I'm thinking since the "sleep" is over, the message reads "Was Up" as in "What's Up?"
Either way...get ready, because all signs point to new Pilots. LET'S GOOOO!