With the new physics engine, can explosions affect surroundings?
Explosions will not be able to push units, but they can destroy doodads. In fact, destroying certain doodads will be vital on certain maps, to get access to expansions or other strategic locations. Furthermore, explosions will not be able to push units because it would affect gameplay and balance negatively, in having units be knocked off cliffs, be stuck in unplanned locations, or ultimately have units disoriented where the player cannot control them.