With most bananas, I'm not sure about the ornamental ones, once they bloom and produce fruit that stalk dies but there should be several pups already growing to take its place.
I was at a friends house the other day and they have a beautiful banana which is only medium height but has enormous leaves and red, edible fruit. They cut off the blooms as soon as they appear because they want to keep the stalk alive as long as possible. Thus, they have about 4 stalks that are at least a foot in diameter, very broad stalks. They don't want the fruit and they cut off the pups as well. Happily they have offered some to me once I have a spot for them. I love the leaves, they are at least 3' wide and the whole stalk is only about 10' tall. Really beautiful and tropical.