Some points people are making seem to be around these. I think these are the three main points being followed and if I missed any let me know.
Premium rewards are too powerful and should be nerfed.
Premium rewards are not strong enough to warrent $12/mo
Come launch it will be very hard for players to buy gold via silver
From my view the game's premium bonus is good enough to create a desire for it though the structure of the game is that you can still play the game casually with no premium bonus. The players who choose to play this way though will likely not be the ones who see AO as one of their top games. Where things might need a change is the pricing plan. For me I like the game enough to pay 12/mo on it as well as I can financially afford to pay that but I at the same time do not have any other game investments. If the price were a bit cheaper then I could see it opening the doors to more players, especially in other countries.
The only downside to lowering the premium rate is what it might say indirectly about the companies confidence in the quality of the game. As a player I think the game would be fantastic at around $8/mo and exceptional with $5/mo. The game could then become a fun hobby for just about anyone to enjoy and with the marketing for the game going to tablets, androids and iphones it would fit well.
GOLD / SILVER TRADE
The third point from above I would say I agree with too. There will be much more competition for gold which compounds higher from blackmarket sellers grinding albion online silver for hours a day, and buying up gold at whatever price is available. They then undercut the SI website. This will cause a huge inflation which drives up the need to buy gold with real money from either SI or the RMT opposed to using albion online silver.
On the positive side the RMT can only retain selling gold if there is actually gold to sell. This Gold only becomes available if players at some point buy it from SI. Each time Gold is used to buy premium it will skyrocket the s:g ratio more. (Gold into premium = Goldsink)
So now it comes back to point #2. Will the hardcore players and those who see AO as their main game be willing to pay $12/mo once the albion online silver inflation reaches through the roof?
On the other side of things how might that inflation affect the prices of ingame items if hardcore and dedicated players refuse to buy gold with real money?