Looks badly designed for various reasons

Even further away from the town centre shops than the current one

When buses are reversing off the first couple of stands, buses entering will end up blocking the road

Not enough layover stands, and those that there are are badly located, involving buses leaving the bus station, and having to go round and come in again.

No alighting stands meaning again, buses will have to alight further into the bus station and possibly go out and come back in.

When it comes to new bus stations nationwide, you only tend to get two types thesedays, either big old fashioned facilities in busy towns replaced by new ones that are too small, or over the top large facilities in small towns that end up with more capacity than total buses (Hexham looks like it might be a bit like this)

A new bus station on the existing site, removing the building would be better in my opinion