That's going to be fun for the cargo operations at EMA which operate overnight !
Not really - the timings of the closures have been set with cargo in mind. Saturday night there is no cargo, Sunday night is the lowest volume for cargo, and it will be reopening Monday night at 20:00 in timefor the usual weekday cargo operations.
Last I was aware the DHL Sunday night sort would still take place at EMA, but the flights would use a mix of BHX and DSA and freight would be trucked to/from the hub - Mr. Angry may have greater clarity on that though.