I think the hold pool is full for the medium term. We received a positive reply about 6 weeks after the simulator assessment and they told us the hold pool is valid up to summer 2021.
Apparently, it seems IAG has reduced growth forecast for Vueling. The rumours also has it they will introduce the MAX in 2021, other sources say 2023.
The return of some workers also reduced the need for recruitment.
I guess we will have to swim for quite a bit before hearing from them.