Yes!! this sounds like typical incremental progression so I'm not opposed to any of that idea at all 😁
an addition i might add would be adding a different kind of miner either stronger or faster that can be transferred to each tower, like an elder miner or a dwarf per say.. anyway i already like the game so any improvement to it would be very enjoyable honestly.. keep up the good work, I'm gonna be looking forward to each update 😁