"After reviewing our strategic goals moving forward, we have identified the need to look further than just the next season. For us, that means investing in players who we believe will excel given the chance to take our franchise into the future.
Brown said she was disappointed not to be returning for Steel but respected the franchise's decision.
"I still believe I have an incredible amount to offer netball but sometimes what you have to offer simply doesn't fit with the planned direction of the team, and that's just a reality of professional sport," she said.
Brown said she would take time to assess her options before making a decision on where her playing future lies.
"I'm a firm believer that everything will work out in the end and what will be will be. As you get older, you get a little bit wiser and can put everything into perspective," she said.
"My immediate focus is on the Commonwealth Games and making sure that is a successful campaign for New Zealand netball."
It is believed the Central Pulse, based in Brown's former hometown of Wellington, are chasing the Silver Fern's signature following the departure of veteran goal attack Donna Wilkins.