To those disappointed about the lack of a release date: Were you even promised one? Were you promised anything besides combat? The Taleworlds announcement literally says:
For the first time at an event, we'll be giving hands-on demonstrations of battles in Bannerlord to the world's press. Look forward to our videos that will come out during E3 and hopefully the thoughts of those who try out the game!
I would understand the anger if they hyped and promised surprises but that's not the case. Give the devs some love, they are working with what they have, and if they are not sure about a release date yet, they won't give it to us, so stop asking.