Who is the new governor of delta state

I think there may be a misunderstanding here.

Delta State is a state in Nigeria, and as such, it does not have a "new" governor in the classical sense. The current governor of Delta State is Ifeanyi Okowa, who was elected in 2015 and is serving his second term.

However, if you're asking about the next governor of Delta State, that would depend on the outcome of the next gubernatorial election in the state, which is scheduled to take place in 2023.