PN,
Without getting in to the realms of the classified -I'm sure your SIntO / SqIntO can elaborate if asked, a pretty good pointer as to where we might be going in the coming years can be found in the DCDC publications Global Strategic Trends out to 2040 and Future Character of Conflict:
Ministry of Defence | MicroSite | Development Concepts Doctrine Centre | Our Publications | Strategic Trends Programme
http://www.mod.uk/NR/rdonlyres/A05C6...edFinalWeb.pdf
Alternatively, for a more hear and now assessment of why we might need to spend some cash can be found in the current National Security Strategy (for what it's worth post-Arab Spring!)
Ministry of Defence | Defence News | Defence Policy and Business | National Security Strategy published