With the K45K just entering service and the first K45Cs for the Clone Air Force now in production attention is turning to "what next". The Clones have not said what their next generation of fighter will be though they have said that a mid-life production refresh of the type is planned for 2118-9.
The K45CE and K45KE (the E presumably for Enhanced) will be a further improvement of this already pretty unsurpassable fighter. The upgrade will include an augmented reality canopy, further enhancements to the active inertial dampening (which allows the plane to undertake manoeuvres that normally would kill the pilot) and an improved ECM sub-system.
The upgrade could also include "slave UAS", these are micro air vehicles (MAVs) launched and controlled automatically by the K45 to enhance its mission. Its not clear yet if the MAVs will be ready for the upgrade or may arrive later in the 2120s.