Does UC fill up at the last minute?

Hi all,
I have been checking the seating plan for my flight VS73 on 21st June Man-MCO.
It looks like there are only 4 seats allocated in Upper Class and a dummy booking for 7 (that's the most it will take) says at least 7 seats are avaiable, unless they sometimes oversell UC?
Question - does UC usually fill up at the last minute with upgrades and crew flights? Or can we expect to have a fairly empty cabin? I have never flown this route with out it being totally full in UC.
Would anyone be able to do a load check please?
I have been checking the seating plan for my flight VS73 on 21st June Man-MCO.
It looks like there are only 4 seats allocated in Upper Class and a dummy booking for 7 (that's the most it will take) says at least 7 seats are avaiable, unless they sometimes oversell UC?

Question - does UC usually fill up at the last minute with upgrades and crew flights? Or can we expect to have a fairly empty cabin? I have never flown this route with out it being totally full in UC.
Would anyone be able to do a load check please?
