Will there be a disc-based expansion pack? Though Impulse works fine for updates, I'm not sure that the absence of detrimental copy protection features is as much of an advantage, if the full version of the game is download-only.
If the expansions are to be released on disc, when? As the expansion plans seem to have been finalised, would it be possible to have a disc-based game version that also entitles the owner to both micro-expansions via Impulse? If this isn't possible, I'd still buy a second copy of the game if Entrenchment was included, as it could easily be another six months before the second expansion. This might help to unify multiplayer- wasn't the original scheme to have all three expansions completed and on a disc by summer 2009?