Being a Technophobe, it is good to see that Baccus are stocking these as a hard copy. Are there any plans to stock the Scenario supplements as well?

The answer is 'possibly'.    I will be talking to Shawn about this.  There are options including going for offering them as pdfs only.    No definite decisions have been made.

Are there any plans to do casualty figures for thy Great War range? They'd be ideal for suppression markers...

They are definitely in the 'to do' section, but they may have to wait as we are currently focusing on the second world war.