SBG rules changes we know about

I will update this as I learn more:

There is hero synergy, i.e. two heroes next to each other increase each other effectiveness in some way.
There are The Hobbit specific scenarios in the new rule book as well as some from The War of The Ring period ( not rule book/company/formation rules)

There are four new heroic actions:
Heroic Channeling, which gives access to more powerful spells
Heroic Accuracy, which gives an accuracy boost to archery
Heroic Strike, which gives a boost in combat
Heroic March, which gives a movement boost

All monsters gain three power attacks: Barge, Hurl and Rend.
Apparently, Hurl gives you the ability to pick up enemies and throw them.
Rend is apparently useful against models with high defense.

Hand weapons such as swords and daggers allow you to Feint (no clue on what it does)
Two-handed weapons allow you to Bash.

The game remains fully compatible with the current source books.