Here is one that might be worth debating.
In Eldar Codex:
"The singing spear is a psyicically charges weapon similar to a witch blade, but it can also be thrown at opponents....Like witchblades, singing spears wound on a 2+, but when rolling to damage a vehicle they have a strength of 9. When thrown singing spears have the following profile"
Range: 12 " S:X AP:6 Assault 1
The codex refers the player to the rulebook to get the profile on a witchblade.
The profile explained for a singing spear is the same as it was previously for a witchblade when attacking a vehicle. So, the question would be, would the spear still act as a str 9 against vehicles in combat or thrown, or would it work as the witchblades do now in 6th edition?