Star Trek Online has always used the Borg as a major threat. This is evidenced by the Borg's position in several of the game's Strategic Task Forces, top-end challenges for the best of the best in the Federation and the KDF. The conversion to free-to-play will include improvements and updates for these STFs, starting with a change explained in the latest installment of the Path to F2P blog series.
The first change is the shift to two separate difficulty modes, Normal and Elite. STFs are also being added to the PvE queue feature so that players can more easily assemble a group. Last but not least, the missions will feature special rewards that can be traded for a variety of anti-Borg equipment, allowing successful players the chance to better tune their ships for future runs. These updates won't reduce the threat level of the Borg, but they should help more players face off against one of the game's marquee opponents.