Source here (via andriasang)
The game will have magic which can change you into "objects." When other players come attacking, you'll want to change into object form to hide.
You'll find that the various weapons have very precise differences in motion. If you get a powerful weapon, the motion will be different from your current weapon, which could take some getting used to. Because of this, they expect that some players will continue to use the weaker weapons that they've gotten used to, and so they're adjusting the game balance so that these players will be able to clear the game.
Changing into an object sounds like an interesting idea, especially if you team up with a couple blue phantoms.
Although people will hate it, I'm glad the messaging system is the same, the preset messages really added to the world
The last one is also interesting, assuming it means the same type of weapons (2 short swords) would have different motions.