Service Standard

You certainly won't do it any harm by servicing it more often, if anything you're doing the best thing for it. Extra servicing will help ward off those major problems you're concerned about, but it's impossible to say when you might strike trouble.  The engine is generally robust and not likely to need any major work for some time yet. If it's an auto I would anticipate a rebuild in the next 50,000-100,000 km. Apart from that it's the usual things -- brakes, shocks, suspension bushes.