There are about a million ways to make Miners more useful, and the game more dynamic, and I think the way Hydro was changed in Dark Nebula opens a huge amount of opportunities. I hope we see some things like this in the future, whether by a reworking of underused mods, or new mods altogether. Here'e an idea for Hydro Upload:
(WS ONLY for now, but could be adapter to RS.)
Hydro Upload will have a radius, and allow it to target locations as well as ships. Higher levels increase the power of the effect. Radius around 300au (size of Ally 12, for reference) seems reasonable.
Target a Battleship : Reduce cooldown time of all modules on target BS that are currently cooling down. The reduction is a percentage of time remaining - so the effect is better if used sooner - so that it doesn’t catch people off guard to suddenly have mods cooled down.
Target a Transport : Temporary bonus to movement and loading speeds of target transport
Target a Miner : Sends an amount of hydro from one miner, to the target (Entrust, but for Miners). This would allow some Miners to be the mule, bringing Replicator, while not every miner needs to equip Replicator.
(I also have some ideas for adding various Stations to WS that this could have an effect on, but I haven't fleshed those ideas out yet)