We have meetings scheduled thus:
Thursday, Friday, Saturday: 3 hours each
Sunday: 5 hours
Note further than those first three meetings really need to be adjourn 15 minutes before the scheduled slot end in order to clear the room for the following items.
Thus we have somewhere between 10 and 13 hours to cover all of this business. I am starting to think that we may not cover it all, even running for many hours on Sunday!
Personally, I'm thinking of submitting a proposal for next year's meeting (where I'm not presiding) to advance the deadline for submitting new business from 14 to 30 days prior to the first Business Meeting. If the workload continues to increase, and if, as seems likely, the members want to make the Secretary responsible for doing all of the logistics of printing and distributing the agendas for them, they need to give the Secretary more time do get it arranged. Furthermore, it's unreasonable to effectively insist that the Secretary sit at home at their computer until the day before the Worldcon in order to deal with this flood of business.
This year's Secretary has already started her European trip (and I see elsewhere that her travels have already gone awry). I know that she'll manage to get all of this late business sorted, but I was prepared to rule that anyone who didn't submit before she left for Europe would be required to abide by the default rule and make their own copies and deliver them personally to the meeting.