"We want the community to be much bigger!"
Do you have the resources to handle a community that's much bigger than what it is now?
Can you engage the members you have now? No? Why do you think you can engage the members you don't have?
"We want the community to be far more active"
Are you going to put in the effort to make the community more active?
Are you going to organize regular events, start discussions, build relationships with people and prompt people to participate? Where are you going to find the time to do that? What gets cut from your daily schedule?
Wanting stuff is fun, thinking it through is less fun (more important though).