If you want a quick reference guide to the major changes eBay are making to International sites this year Scot Wingo has just released a white paper summarising them.
As well as a time line detailing the dates the major changes will roll out the paper is full of useful tips. e.g. What’s the ideal size for product images for the new eBay Item Page?
Scot’s paper is well worth a read, especially if the categories that you sell in will be one of the first in line for the introduction of Multi-Variant Listings
Disclosure: Scot Wingo is CEO of ChannelAdvisor who are an advertiser with TameBay.