I hope he is. Because you know how important to have a coherent race engineer with the driver. They have been together for 12 years. It is really crazy. Riccardo Adami is also a decent race engineer. Much better than Xavi Marcos. But Hamilton would need some time to strengthen the bond if Bono isn't coming. Ferrari is going to pay him 100m dollars if I'm not mistaken. It is going to be his career-high salary.
No.
Bono will not follow Hamilton in Ferrari.
As the media said Bono has been promoted in Merdedes and will not come in Ferrari.
The engineer for Hamilton will be almost for sure Riccardo Adami, who is currently working with Carlo Sainz.
And it's not just that. As I said before, there's a clause in Hamilton's contract that Bono and other key engineers who were working with Hamilton will not be allowed to follow him to his new team once he leaves. It's called the non poaching clause.
So yeah.. He'll be working with the engineer that worked with Vettel during his stint at Ferrari. There was some word swirling around that Hamilton already called Vettel to ask about the engineer. And we all know Vettel and Adami's relationship weren't all that rosy.