Why would you think Sam be leaving soon? He's only four and a half years old, and considering that the herd likely won't be growing for a few years yet, I don't see any reason why they would be in a rush to send him out, especially since he has Emmet to spar with if he gets too rowdy for the cows at times.
From a previous article Sam mum Azzizah was put to sleep nearly a year ago due to her ongoing medical issues. And therefore Mya his mums best friend became his adopted mum, but she has just left to go befriend another elephant in Italy. So they said that Sam will be leaving once they find the right home for him. Since he has really struggled to be a member of the whipsnade elephant herd without mums support and guidance !
https://www.zsl.org/zsl-whipsnade-z...BbeQpJokKJiFq91MbwL41JbOvTc9CNLbWN79RFpQBZjdE