Good or bad... I don't think he will be invited back by BCB.
You never burn the bridge with your old employers, unfortunately Siddon had done that after he left. There is too many enemy of Siddon in BCB who may still have bad taste in their mouth.
So yes you can do polls as much as you want, or even can do hunger strike... my feeling is he will never going to be back with us.
"Yeh kya kar diya"