2 new movesets via weapons, 3 new characters, 8 costumes + new story scenario, stages and modes? That's some damn good support. Basically, this will be like having Hyrule Warriors Xtreme Legends without the year wait and for $10 less (if ya get the pass).
I wouldn't mind seeing Koei do similar for their mainline games. Although, they do already release lots of weapons, costumes and stages as is. I guess the biggest tell will be how big the scenario and new modes are.
The base game now having 18 characters with 25 movesets is far more palpable, too.
Edit: Only 15 Euros, so ~$20? DAMN good pricing then! I was thinking 3000 yen would mean $30.