Some New features:

- PSP game ported to PS360 New missions that bring the total over 200

- Added controlled AI teamates up tp 3

- Online Coop

- and a limited flight system that makes the battles look Advent Childrenish

- apparently the officers were cheap? so the added a armor break system

Im not to much of a Dynasty Warriors fan, but this looks cool maybe if some of the cummunity here gets it ill get cross over the fence and buy it too.

The demo is kind of fun but I don't think I'll buy full price. Maybe later.

Theres a demo? where?

Depends.

Never played a dynsasty warriors game, does that matter? I get the impression it doesn't but...

Also, is it getting an EU release? 

It does look pretty fun. Doubt I'd be able to pay full price but if I can get it in some sale or second hand I'd be down. 

On the Jap store.

played the psp game with friends.
Was fun at first but ended up getting boring after a day or two.
We returned playing Monster Hunter xD
Definitely not getting the PS3 version xD

Gets boring too fast, its fun for a couple days though.