I also find the frame timelessly beautiful. I haven't seen any major changes from other manufacturers over the years either. Perhaps the move away from Brain to Remote or FA at Specialized.
I treated my Scott Spark RC to a set of Elitewheels carbon wheels and replaced the
Race Face bottom bracket and crankset with XTR BB9441A and XTR M9125 cranks in 170mm.
Aside from the fact that the bottom bracket was noticeably tighter and I had to hit it much harder than I expected, everything went very smoothly. I find the 170mm cranks significantly more comfortable compared to the previously installed 175mm ones.
If the lateral play in the rear swingarm doesn't reappear, I'll be very happy with the Scott. Visually, it's still one of the top bikes for me, and it rides great.
However, having to disconnect all the cables to change the headset bearings is a real pain.