Shani,
The prospect of potentially several hundred Wikimedia employees/contractors taking part in this vote is somewhat disturbing, especially in combination with a 50% threshold.
Few decisions in the history of Wikipedia and Wikimedia have attracted participation from 1,000 or more volunteers. With a head start of 800 or more WMF and affiliate employees voting, who could be directed to vote as a block by their management, you would theoretically be able to push through anything, even if up to 90% of volunteers object ... (I don't think the UCoC, given its history, is much more popular than the rebranding was) ... and then declare it the result of a democratic process.
Even if staff are not directed by management to participate, and are not directed to vote one way or another, I do not see how they (or the community, for that matter) can trust that this is a free and secret ballot for them, unless the process is administered outside the WMF.
Could you say something about this?
Best, Andreas