Family moving to Shenzen in July

Welcome.

Your wife can apply at various schools. As long as she has a foreign face she can get a job. However, whether or not she can get a Z-visa to work is another issue. She will likely need a ESL or TESOL or equivalent. You can get it on line and 50 hours, or in a week if you do it full time, you can get the certificate. She has a 4 year degree and experience teaching, so she will be ok.

Shenzhen will be shock to your system. many things you cannot plan in advance. Just come and expect to feel you way about when you arrive. Coworkers will help you out.

There is a decent sized expat community in SZ of which folk from England seems to dominate. Welcome. The only problem is that most of my English friends have a very difficult time getting around to adapting to the idea of "flexible" contracts. In England a contract is a contract and that is that. In China is is more like a set of guidelines subject to change.

Other than that you will be fine.

Most Americans kind of high tail it back to the states after a few months. Not so with the Brits. I think that proximity of HK really gives you a full taste of home, not to mention all the London Cabs everywhere.

Don't worry. You will be fine. BR.