Series 10 Casting Discussion

[JohnSpook]

I can't help but feel Malcolm was denied a part in the series 9 finale, after such a build up. Perhaps if he was to be brought back onto the Grid, perhaps as part of the investigation into Harry? Perhaps Tom, Zoe, Connie, Lucas and Danny could be brought back in flash-backs to previous series, or before Spooks even began (I.E we see Harry meeting Lucas, Tom etc for the first time?) I am of course specualting that that is what season 10 will be about, the investigation into Harry and his career. But it would be cool if this was the final season to see all the old characters again.