Killswitch Engage weren't lying when they said they were demoing new material with the hopes of a 2018 release. At the time they said:
Jam sessions starting up in October, demos are getting cranked out! 2018 we will be dropping some music and getting back on the road once again! Who's ready for this?!!!
In a new message, frontman Jesse Leach revealed the band have completed a song, and we should be hearing it soon:
The "odd couple" putting in work. Adam D has a way to balance out my hyper chaotic creative mind. I come in with a ton of ideas and he organizes, tweaks and modifies them just a touch here and there. I really enjoy working with him, it's just easy. Hell sometimes there are no words exchanged we just know when it's working or not. I wouldn't be the song writer or vocalist I am today with out his wisdom of music and theory. Dude is on some next level, very grateful to be able to work with him through the years. Rad new KSE track just about done. It's a single so it'll be out sooner than waiting for a record to be competed… however it's still a wait so as the kids say, the hype is real!" Ha ha ha stoked for this beast of a song!
https://www.instagram.com/p/BZXUCH3giZE/
The official Killswitch account also posted a note showing bassist Mike D. in the studio laying down some bass lines:
https://www.instagram.com/p/BZdyUAxF8qB/
So while you're reading this, the band is cranking away on new music. We're ready to hear it!