Just spoken to the recruiter and HR have been in touch and they're drawing up a contract now. It's only a 3 month extension but it was mentioned that it was likely to be extended again.
I'm happy with that. 6 months would have been better but the market is a little funny at the moment so I can understand where they're coming from. They're a tiny company, compared to what i'm used to, there's around 50 people but they're expanding considerably and taking on some fairly hefty portfolios next year to keep things interesting.