I have a semi-similar situation, only way more confusing.
Spouse is a UK citizen green card holder. We moved to the UK last March/April. Spouse has recently been hired as a contractor/independent consultant for a US company, and is doing other work in the UK as well as an independent consultant. Idea is to work as a sole trader initially. Our bank doesn't allow international wires, and in an eagerness to get paid for the US work for right now, we are putting down our US bank. Instead of a W8, we are supplying a W9 (since a green card holder). I honestly don't know what to do at this point. We didn't apply for US citizenship for spouse due to the immediacy of our move, and were concerned about tax implications of doing so. Moving back to the US is not out of the question, however, we are not in a rush to do so.
Any advice?