And another thing ... about the violins. The Strads are mostly being stored and not played. Any finely constructed string instrument is going to go dull (sounding) in storage. Not the fairest of tests to put up one that's been locked away for years against one that's being played daily (and is tweaked by technicians). There's a lot more to a test like this than just putting a few of these ancient relics together with a few players.
For the trumpet, I think there's still room for improvement. How about a tone control? Some sort of knob that dials you out of "dark, smokey jazz" and into "bright, cutting, lead".
Or, how about an FM radio (the whole trumpet makes a great antenna), for those times when you'd really like to tune out the conductor?
All sorts of potential improvements are available for the R&D teams.