At least 4 due to the size of that plane... regardless of how many rows, I really think as the first in the industry, would be a very smart move, with very little impact on the overall capacity. If they fly at 85% capacity now, losing 5-10 seats just means that they'd be flying at 90% capacity... makes a ton of sense to me! It also has the potential for upsell at check-in time to non-Elite, if Elite hasn't picked those up! Win-win-win!