Yes. Regardless of whether there is a Yes or a No vote (or Cameron bottles it and claims enough of a victory with his renegotiation).
Okay so, admittedly Douglas Carswell has a great sci fi vision vision of a beefed up Singapore and at least he's honest on migration:
“Our grandparents’ generation had to get to grips with the idea of importing strawberries from Spain and mangetout from Kenya. Today we live in a world where labour mobility is inevitable, and unless you want to become like North Korea you need to accept it. You can no more ban labour mobility than food imports.”
And diet Trump (Nigel Farage, obvs) has a slightly more scary vision of a little England (and to a Scot it sounds very England centric, odd that to a Scot he seems to want his own mini EU) that restricts migration and withdraws from the common market to regain control of "sovereignty". I get that there are people left behind by globalisation. I just don't have a lot of sympathy. Across my facebook these seem to be mostly the idiots who dicked around and thought that leaving School in the 90s at 16 and going to work in the box folding factory was a job for life. Under the UKIP migration plan the UK population would shrink by hundreds of thousands of people a year. And a falling population would mean a downsized economy. Which will probably bite all the UKIP voting pensioners who didn't save for their retirement (and sure as buggery didn't pay tax for things like free bus passes and TV tax exemption but somehow this is fairer than not forcing kids into brain mortgages).