Star Trek Online, so much so that some things occasionally fall through the cracks. The latest installment of Ask Cryptic focuses on a few of these elements, like the Andorian ship and the addition of a playable Romulan faction. Neither of these elements is on the table for immediate inclusion, but both are in the pipe for future updates; the former is planned for sometime the next year, while the Romulans are on the more distant horizon.
Not everything comes down to a simple "not right now," however. The KDF, for instance, is slated to continue receiving new updates and additional features to bring the faction more in line with the Federation's content level. The development team is also hard at work trying to allow older ships to be retrofitted into higher-level content, letting players take classic designs into modern engagements. It's certainly not a question of whether the development team has a plan or not, just a matter of how soon all of these fabled upgrades will be implemented.