While I do hope all SD apps get updated for the upcoming update It looks like they will have their work cut out for them. While I understand the leaked build is not final (or is it?) judging by my usage the past day or so many changes have been made that will either break or drastically alter how the apps work.
Start10 (or w/e it will be called see below) shouldn't have too much trouble as it isn't trying to skin the built in menu but rather creates its own.
WindowBlinds on the other hand will need major changes. For example the taskbar now no longer allows you to show buttons in the "Never group - show labels) setting. all buttons are always combined and never show the label. The option was removed from settings.
On a side note can we rebrand StartXX to something like sdStart and skip the number? Then you don't need to rename it each time a new version is released. Of course the version number itself will change.