The original date of the pilot's bail was extended.
He is now due to return to the police station to on Wednesday 5th April.
This is police bail. ie To date, he has not been charged with any offence.
There can be many reasons for an extension so it's pointless speculating.
Pigsfly
Your propositions 5 & 9 provide scope for discussion, and I don't understand what your proposition 6 adds, but I'll resist the temptation to depart from topic.
FL