Update: We know it's not Mest now - we'll update this post if there's any confirmed info. Rise will announce it next week.
Rise Records recently tweeted that they are announcing a new signing this upcoming week. Shortly after, Mest vocalist Tony Lovato retweeted an AltPress news story saying "Rise Records announcing new band MEST next week" - but since then, AltPress' news story has had the Mest part edited out. Mest also recently toured with Rise Records bands Attack Attack! and Secrets, so the signing doesn't seem too out-of-this-world. Either way, we'll find out next week.