With the changes in ore distribution players from all areas will want to venture into other regions and areas in which to mine. For example a high sec group into low, null or jspace, or a Null group wanting to day trip into a WH in order to collect ores.
Ore is bulky, and a Mobile Ore Compression Device could be the answer that small groups need to facilitate operations out side of their main area.
Acting in a smiliar way to a mobile depot. You would deploy the device into space and it would take a some time to Anchor. Then people could drop there ore into it and compress it so it need to be able to be used by a fleet maybe using the fleet hanger options liek you see of DSTs etc.
You could have certain stipulations like the device being over a certain m3 so that not all ships can carry it.
If attacked it would have a 2 day timer like the current mobile depots, but you could repair the device using Logi (meaning people would need to bring additional ships along to maintain the device.
Compressing as well as in a refinery may be too much, so perhaps the module would only compress at say 30% or 50% of the amount a refinery would do so it wouldnt bee so OP.