As mentioned... All fluids, filters, wearable items, wires, etc., but in case these weren't mentioned...
Give the entire fuel line a clean out with seafoam before replacing filter, lol. You can rebuild injectors too if adventurous, there's a write up here. T-Stat wasn't mentioned as well as replacing Dex-Crap with anything else. When checking gnoton stuff, wires lugs, give the coils a once over. Bleed brakes, check lines, new alignment and rubber if needed. Tranny, well, yeah, if never touched, then don't. If maintained, then pan drop, new filter at min., then suspension too, check all bushings, ball joints, sway, control arms, etc. at 200k, the ride is definitely going to need some tlc. When all that's done, take it and get it detailed or do it yourself. Q-tip treatment : ) dont forget headlights, tails and any lamps needing replacement. Then weatherstripping too is worth a check over... As well as exhaust system. Generally, a good once over the entire car and you'll get many a more miles...