Cloak- Toss up between
Enchant Cloak - Greater Critical Strike - Item - World of Warcraft (10 crit),
Enchant Cloak - PvP Power - Item - World of Warcraft (12 PvP Power), and
Enchant Cloak - Stealth - Item - World of Warcraft (unchanged). This will depend on play style however I will probably be going with crit or PvP power.
Chest- 4 stats still BiS, remains unchanged.
Bracer- Another tossup between
Enchant Bracer - Agility - Item - World of Warcraft (8 agility) and
Enchant Bracer - Greater Critical Strike - Item - World of Warcraft (10 crit) however, I might be going with
Enchant Bracer - Major Stamina - Item - World of Warcraft (15 stamina) to allow me to stack agility in other slots without losing out on stam.
Gloves- 15 agility remains BiS but there is also
Enchant Gloves - Blasting - Item - World of Warcraft (8 crit),
Feet-
Enchant Boots - Blurred Speed - Item - World of Warcraft (5 agility and movement speed) will most likely be BiS. Other options are
Enchant Boots - Surefooted - Item - World of Warcraft (8 crit and hit)
Weapons- As far as weapons go it's too early to tell unless someone has been on PTR. Yes all the MoP enchants look awesome and scale nicely but they are all based on a new RPPM (Real Procs Per Minute) system instead of the older PPM system that mongoose and crusader and other enchants are based on. Mongoose scales to 90 agility and 22 haste so thats the first enchant I'll be testing to see how viable it is.
Didn't take much time to make this so might be some mistakes. Hope this helps.
P.S. You might consider leveling your rogue to 22 for gouge, I turned off my exp at 22 and its perfect.