Here's my proposal for our sensor drone design next turn (or some other turn I guess):
VEMS Sensor Drone "Reading Rainbow":
The Variable EM Spectrum Sensor Drone "Reading Rainbow" is a variety of carrier-deployed drone similar in many ways to the "Hornet" fighter drone preceding it. It is a flat and small drone, tapering down from a central height of 2m (much as the Hornet), however instead of being a chevron-shape like the Hornet, it is shaped approximately like a leaf. The reasons for this are as follows: the leaf shape is also intended to make the Reading Rainbow nearly impossible to hit from multiple directions, and allows for a thinner profile from the sides than a cylinder quite could, but as the Reading Rainbow doesn't require the maneuverability that the Hornet does, it doesn't need the chevron shape and thusly can be less wide than the Hornet.
The Reading Rainbow contains a miniature gravity drive much as the Hornet, and has tiny maneuverable thrusters that open out from the flat sides of the craft mainly intended to allow the drone to finely control its movements rather than turn particularly quickly, but the most important piece by far of the Reading Rainbow is its Variable EM Spectrum Sensor, or VEMS Sensor for short -- aiming to compact multiple functions into a single sensor to help make the drone small. The VEMS Sensor is a device that emits waves along the EM Spectrum (ideally, from X-Ray to UV to optical to IR to radio and microwaves) and is equipped (through antenna, photoresistors, etc) to precisely detect their reflection, capable either of rotating or of focusing on an object once it's detected a return from it. The VEMS Sensor is designed to have the capacity to detect objects, and to determine the range and velocity of these objects relevant to the drone.
The real genius of the Reading Rainbow is how it takes this one emitter and uses it in combination with the numbers of the rest of the sensor drone wing. One function that the Reading Rainbow performs is to send a beam of visible light between drones, from the emitter of one to the photoresistor of another. The receiving drone collects data on the intensity of the beam, and depending upon how the intensity of the beam fluctuates thanks to absorption or diffraction by intervening particles, the drone determines the contents and concentration of ambient particles in the space it's present in, acting as a spectrophotometer.
The Reading Rainbow also uses its numbers to disperse throughout the battle space, and to confirm and piece together the readings of other drones over a network in order to create a contiguous and confident whole of data that is sent back to the mother Expedition through the drone's pinhole bore system (based on the sad, basic sensor drones we already have). It should be noted that an effort is made to improve the pinhole bore system on these drones; though still just the same kind of very small bore system usually used for FTL comms on sensor drones, it is hoped that these particular pinhole bores can be created quickly and stably enough to ensure streams of (encrypted) data can be sent back to the mother carrier only occasionally interrupted by the destabilization and closing of the bore.
To sum it up: it's a small carrier-wing sensor drone designed to disperse, track objects, check the ambient particles in space, and report a contiguous whole of data back to the carrier through a combination of a variable EM spectrum emitter/sensor and an improved pinhole bore generator. Also it's got some small thrusters/a teeny gravity drive to move around.