It is great news for Berlin (and Brandenburg) as it will bring (big) money and attract talent. It might even attract people from Poland which is only an hour drive away and has a large pool of very talented and experienced engineers. So far besides maybe Siemens there wasn't too much industry here, which is more present in the south of the country. Being outside of the city center it won't contribute too much to gent…
Brandenburg as a state is an interesting. Crucially, it's not the state of Berlin (Berlin is s city state within the German federation). That means access to lots of grants/subsidies and also that they are somewhat shielded from the chaotic governance in Berlin.