Massively

He writes that The Empyrean Age expansion involved new tools, which the devs now use to create deadspace complexes and add greater interactivity to missions. Mission running, particularly Level 4's in high-sec, are a major source of income for many players. CCP plans to enhance this aspect of the game experience by adding more dynamic PvE content; exploding ship and structure events, NPCs that aggress based on standings, and mission story arcs are actively being developed.

Molock gives some hints as to what we may see in Empyrean Age 1.1: roughly 100 new agent missions with another 125 in varying states of completion, and yet another 120 missions have been submitted by the writers. Molock states that new mission content will not only be linked to the expansions, and can be added to the game during the normal downtime if CCP chooses to do so. Here's hoping they opt to do this soon, as pulling that same mission three times in a play session can get a tad repetitive. Of course on the flip side, the influx of new PvE content means that certain lucrative Level 4 missions may not be offered by agents quite as frequently. Still, it's a small price to pay for having a much wider array of mission offerings.