There is going to be a very large demand for many existing items when Cata releases and we can begin stock piling these items now.
So step back and think for a moment of what is going to be needed.
New characters will be leveling goblins and worgens so we need to think about what these new characters will need.
First off bags will be needed, I currently have about half a bank full netherweave bags and a few frostweave bags.
I plan on having an entire guild bank full of bags come Cata launch.
BoA enchants are going to be a big seller as well.
Here are the ones I plan on stock piling, Boots - Minor Speed, Chest - major health, Chest major mana, weapon crusader, weapon - fiery, & Chest - greater stats.
Weapon - Spell Power & Healing Power are very difficult to get but do work on BoA.
This is more speculation than anything, I began thinking that vanity pets and other vanity items that are needed for achievements will be in huge demand come expansion.
My reasoning is that players will create new characters and want to match their main's achievements.
A good example of a pet that could possibly be worth farming for is [Azure Whelpling].
This pet may no longer drop come cataclysm since the mobs it drops from will be removed.
I am still waiting for confirmation but this could be worth farming or staking out on the auction house for some good deals.
This pet could bring in several grand if it turns out to be removed from the game.
If anyone has confirmation on this please let me know.
Another thought I've had is the [Reins of the Crimson Deathcharger] that only high end raiding guilds can obtain.
When expansion launches this item will be very limited in supply as raiding guilds will quit ICC content.
It will be difficult for players to put together groups to go and farm these items in cataclysm.
I rarely see anyone putting groups together to run old TBC raid content so I figure it would be the same for wotlk content.
You could possibly be able to buy this mount for 20 to 40k gold now and resell it for 80 to 100k after expansion launches.
Again this is all speculation but this is very realistic scenarios.
So step back and think for a moment of what is going to be needed.
New characters will be leveling goblins and worgens so we need to think about what these new characters will need.
First off bags will be needed, I currently have about half a bank full netherweave bags and a few frostweave bags.
I plan on having an entire guild bank full of bags come Cata launch.
BoA enchants are going to be a big seller as well.
Here are the ones I plan on stock piling, Boots - Minor Speed, Chest - major health, Chest major mana, weapon crusader, weapon - fiery, & Chest - greater stats.
Weapon - Spell Power & Healing Power are very difficult to get but do work on BoA.
This is more speculation than anything, I began thinking that vanity pets and other vanity items that are needed for achievements will be in huge demand come expansion.
My reasoning is that players will create new characters and want to match their main's achievements.
A good example of a pet that could possibly be worth farming for is [Azure Whelpling].
This pet may no longer drop come cataclysm since the mobs it drops from will be removed.
I am still waiting for confirmation but this could be worth farming or staking out on the auction house for some good deals.
This pet could bring in several grand if it turns out to be removed from the game.
If anyone has confirmation on this please let me know.
Another thought I've had is the [Reins of the Crimson Deathcharger] that only high end raiding guilds can obtain.
When expansion launches this item will be very limited in supply as raiding guilds will quit ICC content.
It will be difficult for players to put together groups to go and farm these items in cataclysm.
I rarely see anyone putting groups together to run old TBC raid content so I figure it would be the same for wotlk content.
You could possibly be able to buy this mount for 20 to 40k gold now and resell it for 80 to 100k after expansion launches.
Again this is all speculation but this is very realistic scenarios.