Just thought I'd update, Jane Igoe got back to me:

"Thank you for your recent email and my apologies for the delay in responding to your query our management team have just finalised the Food and Beverage schedule for the Christmas season. Please find attached the Food and Beverage schedule for your review. I would be happy to answer any queries you may have in regards to this schedule.

In relation to your query regarding renovation works, the majority of major renovations in guest areas are now complete for example the Lobby Area, B-Bar, Sussex Restaurant and Conference and Meeting Room Centre have all been completed. There are currently no major works planned for the dates of your stay and as you will be staying with us during the Christmas holidays, I imagine any contractors conducting superficial renovations on the property will be on holidays during this period."

So looks like things are pretty much wrapped up. And the "limited food and beverage facilities" apparently just meant that there would be limited hours (she attached a schedule), not that they would be without a kitchen due to renovations, as I had feared.