How a longer Type 45 run might have evolved

If Type 45 had a production run as long as the Arleigh Burke class, would newer stealth features have entered the design?

Later Type 45s would likely have gained Mark 41 cells and a 5-inch gun while retaining an already low-observable hull form.

Type 45 is described as already more stealthy than the Arleigh Burke, with weapons changes the clearest prospect for a longer production run. Later ships were discussed with Mark 41 vertical launch cells installed. A move from the 4.5-inch gun to a 5-inch weapon was also plausible. An Italian 5-inch gun was available, making it a more immediate option than the Swedish suggestion raised in the exchange. A British BAE/Bofors 6-inch proposal is mentioned as another idea.