I wasn't following this too much since it didn't look like my type of game initially, but the trailer has me curious to know more.  I can't tell if it's a coop tower defense or a SP tower defense where you controll 1 character at a time. But, the gameplay looks like it has some diablo / moba influence, which has me intrigued. It's different enough from DoE that I don't exactly know what to expect and it will be fun to find out more.

I can't tell if it's a coop tower defense or a SP tower defense where you controll 1 character at a time.

Both

I was hoping it would be this, but it's a pretty rare type of game design so I didn't expect it would be true. Can't wait to learn more as it's revealed.