We are sure...
The select VS window on the FCU will NOT be open (i.e.
the display will be blank) until the FD's return. There is no active mode until FD's are available.
The display window will then 'open' and will, on the FCU panel, display the existing VS at FD recovery, as will the FMA, i.e. +1400 VS. The FCU value & the FMA value
cannot be different.
edit: BTW, in ALT2 the A/P is inhibited permanently for the remainder of the flight.