Hi Daniel,
In the interest of a structured debate, I'll let others chime in as well after this, but quickly on point:
A simple way forward, changing it to a yes/no question, may be asking the GA to vote on the motion "The constitution is amended to rename the Fellowship Representative to Community Representative"
It's not as simple as that. If we were to rename it simply, then the name would likely need to be "Supporter Representative", as the voting body are those we now call supporters. A "Community representative" implies something more than that, so it would need to be coupled with an understanding of who is a part of the community, who can vote, and so on.