I think since nemesis had its retrack, there have been assumptions made that every other coaster on park will fall apart when it reaches 30 years old. The forces on Galactica are nowhere near the forces experienced on Nemesis, so I expect the track to last much longer.
I could see them doing a technical overhaul of the trains though. They’re hugely complex and the “Galactica faff” during loading procedures severely hampers throughput.
Forget about the fact Nemesis needed a retrack at 28; 30-35 years old is a pretty grand age for a medium-large steel rollercoaster of any sort.Exactly this. Proven with The Runaway Mine Train, older than the original Nemesis and still operating just fine. Granted it only has one train, but the theory is correct.
There's a reason there's not many Schwarzkopfs about any more, and it's not that they were bad rides, nor that they weren't appreciated by their riders. They're just knackered. Same goes for early Vekomas/Arrow rides to a lesser extent.
The complexity of a powered family coaster vs a flying coaster (a pioneering one at that) isn't only measurable in number of trains.
Whether it's track or something else, a day will come when Air will eventually need a large investment to keep it going. In my view, it's highly likely the park would call it a day at that point rather than make the investment (as they did with Nemesis, but opted not to do with Black Hole/Corkscrew).