Haha I can sense your urgency
Yep, will definitely wait until my book list comes out before purchasing any textbooks.
What are the odds the textbook will stay the same even with changes to the study design ?
Well, if the subject is anything like it was this year, you will never use the textbook anyway. I found that news websites (FUCKING THANKYOU AL JAZEERA) and theoretical international relations essays and papers and reports put up by people with their masters n shi- were 100X more important. It's a subject where you have to really delve into a lot of stuff for yourself and allow yourself to get a little bit off track.
For example, over the summer holidays, I would definitely recommend learning about Realism, Neoliberalism, liberal internationalism, neoimperialism and perhaps one of the other more obscure views on internationalism. They are interesting in and of themselves, but if you can drop a mention to Mr Hedley Bull in one of your essays you'll be miles ahead of the rest of the cohort.