Re: those of us left will earn more as a result
Unfortunately all the multinationals are already relocating across Eastern Europe as the wages & expenses are cheaper. Romania, Hungary etc are huge savings. Whatever we do we have to deal with this. Even if we remained in the EU this would be a problem.
Sorry! You are mistaken. If you don't believe me, put together a fake CV showing a couple of years experience with Python, Ruby, Linux, MongoDB, Java, working as a junior analyst in finance. Count how long it takes for your phone to start ringing (and expect the head hunters to be cross-referencing to find your LI profile, Fb,..
Believe me, this is not how a jobs market works when there is a surplus of supply over demand, as some of us more *ahem* senior commentards will remember from personal experience.
Multinational firms pick the location of their sites (HQs, ops centres, dev shops,..) according to many criteria; cost of labour is one, certainly, but only one. (I was in CW on June 24th. As one banker said when it was put to her that they would all just move to Frankfurt: "Have you ever tried going out for a night on the town in Frankfurt?")