When mine hit 50k I did have the transmission flushed. The manual says 100k but I'm not waiting that long. I did the coolant and transfer case lube also at 50k and just put new spark plugs in last week (54k). The manual says 100k on the plugs but again, I'm not waiting that long. Air and fuel filters if you haven't done them yet, the manual says every 30k.
If you want to be picky, change the axle lube also. The rear is pretty easy to do yourself on a Gen 2 because it has a drain plug, the front you will have to take to a shop with a suction machine. I go to the Valvoline Quicky Lube, costs about $40.
50k on a 2010 ??? !!!