DC Universe Online: when the population dropped below the level SOE was looking for, it decided to combine all the individual servers into a small group of mega-servers. The same thing could be a distinct possibility for Star Wars: The Old Republic.
Yesterday, we reported on PC Gamer's interview with Lead Game Designer Daniel Erickson. When asked if the new group finder would be cross-server, Erickson replied that it would be single-server because "we are coming up on a huge move to servers with massively higher population caps than we have today."
Of course, there are no details about these massive servers yet, but this quote does suggest that BioWare is looking for a critical-mass solution that is more than just simple character transfers. We will be sure to keep you abreast of the details as we inch closer to the launch of Update 1.3.