If for some reason Blizzard implements current HC addon rules, how many would be opposed to the idea of a dynamic trade goods vendor?
I find that being unable to fully engage in professions due to the current HC limitations preventing the ability to acquire certain required goods without disproportionate effort (Looking at you enchanting rods) is currently a big turn off for myself and probably others.
It would be a vendor that would sell profession exclusive trade goods that is required for other professions (Bars, herbs, rods, leather, grinding stones, etc.) but at a dynamic price.
Say at the start for example copper bars start at normal vendor price (10c) to sell but costs say 10 times to purchase (1s), but then when half the internal stock is depleted, from people buying more bars than being sold, you can sell the bars for (40c) and buy them for (4s) and when internal stock is at 25% you could sell for (1.6s) and buy for (16s).
It will always be a heavy gold sink (1:10 sell/buy ratio) so it will be “inefficient” to use it long term but at least people can choose whatever profession they want without being pigeon holed into the handful of combinations currently available.
The prices can update every X minutes to prevent lag and there can also be a purchase/sale cap during these windows to prevent exploity shenanigans that I’m sure the community would invent.
I think this would allow the player some freedom in their character while also allowing some form of player interaction with the economy without undermining the integrity of the challenge.
Of course this is only if Blizzard enables the current HC rules and disables direct trading/AH/mail.
Sorry about the wall of text.
TL:DR
Add a vendor that sells profession related goods that changes prices based on activity so players under current HC rules can fully engage with professions.