Okay! I am here!
I have some information for you all. Those that have filed support tickets will likely have seen this already.
The bracket calculation for Guild Wars is based on a number of factors including, but not limited to, how well each guild performed in their bracket (standardized by the general difficulty of that bracket), the position each guild finished within their bracket (positions 1 & 2 are awarded small bonuses, while positions 9 & 10 are penalized somewhat), as well as (to a lesser degree) the general makeup & progress of the individual guild.
This means it is possible you might see yourself with more points than a guild in a higher bracket but NOT move up to replace them, and there could be a number of reasons for this, including the fact that the higher bracket was considered more difficult than yours, or even that a team in a lower bracket than you had an amazingly good week and leapfrogged past you.
We are watching these calculations at the moment and may make small changes and tweaks to them.