I'll play the guessing game like this:
It's a firearm or firearms - a new line - their saint advertising has said so. Or at least firearms will be part of whatever the new thing is.
"Defend your legacy" has a vaguely patriotic theme to it what with their core marketing around the historical armory name. So while many of their excellent products come from elsewhere, I'll guess they have or plan for a new plant in the USA. Legacy could also mean "children".
They sell a lot of pistols. They would like to sell more of them, but to really move the needle they need a target market that is large and growing. Honestly I do not know how much growth there is in other firearms niches, but concealed carry is big and growing. An I've read that women are the fastest growing demographic for carry weaponry.
Age I think is a critical factor. Middle/older folks (other than collectors/accumulators like myself) long have settled on what they like and have a personal investment in. People who buy - in marketing terms - seems like the age group most targeted is 18-35 if I recall correctly.
So I'm guessing a firearm line that is suitable for very discreet carry, made in america, easy to shoot, attractive but not flashy or patronizing, and has desirable safety features.
They already have service caliber double and single stacks. What they do not have is:
.380 pistol? more likely
.38/357 revolver? less likely
New designs and materials to make them stand out from the competition. Grip safety on both?
Pricing that would compare favorably to established players in their respective markets.