What will most likely happen
The most likely result of Brexit is this:
We'll leave the EU, thereby making several overpaid MEPs redundant and no longer having any say in what actually happens in Europe.
We'll sign new trade deals that will contain clauses, such as free trade and free movement. Meaning economically nothing changes. We'll still give £350m a week to the EU for this trade agreement. If we're lucky this will also get us access to EU subsidy funding. Immigration from EU countries will still continue. We'll no longer be able to veto expansion of the EU to countries such as Turkey.
Non-EU immigration will become more difficult to control as we'll now have to process them in Dover rather than Calais.
So nothing really changes except we'll no longer have ANY say in how the EU progresses. That does not look like a victory for Great Britain.
And does anyone else find the whole "Let's make Britain GREAT again" rhetoric disturbing? It has all the connotations of Empire building and 1930's jingoism. Let's face it, a couple of small islands full of sheep farmers and accountants do not make an Empire. No matter how much we might like to think that way we no longer control half the globe and we never will again. Accept we're one of many economic powerhouses on the global scale and we must work together globally, not in isolation as many seem to think we're capable of doing.