Hi @Mill_Darby funnily enough something v similar has just been asked here on this topic:
@CharlotteSteggall meet @Mill_Darby, @Mill_Darby meet @CharlotteSteggall
I think it's a really good idea to research the needs of your audience so that you can deliver as much value as possible to them.
It wasn't for an event, but when I was creating this community, I surveyed people on our blog asking people what they wanted from an online community for event organisers. The data was invaluable in helping me create this platform. I used Google Forms for it.
I decided to make my questions very open ended so that i'd didn't constrain people's answers within parameters that i had subconsciously set. It gave me a really wide range of ideas that i'd never even considered.