Yeah, my BoA cash rewards card came in on Friday, was disappointed to see there was no mention of Visa Signature at all
Is your credit line under $5K? If it is over $5K I would be surprised that it wouldn't be a Signature. Banks like to make their reward cards Signature and World as often as possible because they earn a higher swipe fee on those cards which help pay for the reward. Visa requires at least a $5K credit line for Signature.
Congrats on the card though. I am thinking about changing my Accelerated Cash Rewards Amex to the new Cash Rewards BankAmericard.