[room271]

We will find out is the only sensible answer, as the question is too complex really.

But, one obvious impact will be labour supply. Fewer European area devs will come to the UK, which will make things less attractive for big tech companies.

[andy_ppp]

This might cause wages to go up or alternatively a points based immigration system will allow any programmers to apply for a visa from anywhere in the world. I have no idea to be honest, it will be interesting to see what happens.

[orange_tee]

I don't think you are right about labour supply. UK has always had the upper hand when it comes to immigration. Half the world wants to move there. They will have absolutely no problem attracting devs from all over the world.