Hi Elaine! I moved my coworking space into another one for 4 months in between spaces. It was awkward at times, but in the end we both saved each other (they needed the rent, we needed a home).
Ultimately, it's more about the culture than the space itself. If you define what your community's vision and purpose is, that should stand on its own. People can be attracted to participate in your vision, or someone else's, or both.
If you do eventually move out of the space, you can maintain a strong collaborative relationship, so you're cross-promoting each other's efforts and continuing to build collective social capital among the both of you.
But first thing's first: why are you here, and what is it that you want to create that's different from everything else out there?