BN might well move to Lee on Solent, if they can sort out a secure long term tenancy; I guess this means owning the place (or a long lease) with planning permission for everything they might want to do.
I have done business with some firms on the IOW and it is evident they have great trouble finding what one might call skilled labour on the island. I gather that over the years almost anybody who could read and write had emigrated to the mainland.
It is also possible that Bembridge will not survive unless they provide some half decent facilities, to support the traditional burger run business which is the bulk of their traffic now. They need a decent cafe/restaurant. But that's easy to arrange. The island is a very attractive place to fly to.