Virtual offices, definitely. A big service round these parts for new companies looking to register a more prestigious London address, or businesses who need ad-hoc meeting rooms.
How could you get value from the domain via this? Well, it's a strong brandable- could be used for a Virtual Room/office finder- search in London, NYC etc.. Work out some kind of affiliate deal with the vendors? Or even go so far as setting up a vendor/re-seller yourself! There's a lot of possblities with this domain now, before anything VR is even considered..!