StarVault CEO Henrik Nystrom's comments during an IRC chat with fans. The chat was meant to cover the game's next major update, Awakening, but it included fan questions for future updates as well. It also included Nystrom telling a fan that he sees Mortal Online having roughly as many players as EVE Online in five years.
By way of elaboration, EVE Online currently has roughly 450,000 players. Mortal Online's subscription numbers have never been revealed, but estimates place it under 10,000 players.
An impossible goal? Definitely not, but certainly one that might be a bit overly ambitious. Fans of the game can still take a look at the chat for other interesting tidbits, however, including plans to add drugs and improve the new player experience in the future.
[Thanks to Sandboxer for the tip!]