Must admit I've not checked any variants other than those I'm specifically interested in - but I clicked on one at random today and found the 'due' date for some has been updated from 2019 ......... as it stands variants A to F are shown as due THIS year and the rest remain as 2019 - which is obviously wrong, but might signify NOT 2020. No idea whether any such difference is intended or should they all be shown as this year, I wonder......... fingers still firmly crossed.