Sharing your strategy with members instead of just a broad vision statement changes things.
It lets members give feedback and play a participatory role in the process.
It lets members ‘see behind the curtain’ and how the community process works.
It holds you accountable to a time-frame for members.
You can adapt it later if you need to, but sharing your strategy (at least a simple overview of the strategy) probably has more upsides than downsides.