If you can keep your Sky sub running in the UK, Sky Go will work. Some Smart DNS companies support it, but not many as it is a very limited service as far as platform support and video quality goes (though it has more channels than Now TV).
That same smart DNS will also give you access to all of the UK catch-up services, so you won't have an issue with English/British TV. If you decided to add Netflix (which is highly recommended if you have Smart DNS), then you will also have a major selection of films and TV shows available.
But seriously, if something comes out new, and you don't want to wait, just rent them from iTunes, Google Play or whatever you use.
The only real question here is which platform (device) to take with you to Asia. What you choose will be important as some require Smart DNS in the router, others don't.
VPNs by the way are a great option, but they have a couple of issues:
* They are harder to configure on set-top-boxes (or impossible).
* They cost more.
* They will not provide very good bandwidth to the UK from Asia, and this is important for streaming.
Smart DNS has better bandwidth, is cheaper, and can be configured on far more devices, but the trick is to find a Smart DNS provider that supports your devices and your services, though this is pretty easy for the major services.