Long-haul cyclers and Titan methane extraction

Hi all, I’ve been thinking about the long-term logistics of interplanetary trade, and I’m curious about the physics and orbital mechanics involved in a hypothetical future where we establish a trade cycle between Earth and Saturn’s moon Titan using long-haul cyclers. I imagine something equivalent to a oceanic bulk freighter.

Assuming a future with autonomous AI infrastructure and fuel-efficient slow transport, could we design a stable cycler system (similar to Aldrin cyclers proposed for Mars) that loops between Earth and Titan on a predictable schedule? Would such a route need regular propulsion adjustments to maintain alignment, or could it become semi-passive with careful planning? Are there stable gravity-assist trajectories from Jupiter or the outer planets that could help make this more efficient? And finally, Would it be possible to “drip feed” fuel or materials from Titan to Earth or vice versa this way over decades?

Bonus speculation: Would the availability of cheap methane from Titan drastically affect long-term energy economics if a safe Earth reentry system could be developed?