Actually that isn't a upgrade its technically same processor just different wireless radio's because the 8250 is a GSM only chipset while the 8650 is the CDMA supported variation(but also still includes GSM). You will notice its the same thing with the european HTC Pro 7 and the HTC Arrive for sprint.
Edit: Also something of note Verizon list it as a MSM Processor but it should be QSD. MSN is used on the second gen snapdragon but the trophy definitely only has the first. I imagine its a mistake by Verizon.
Awwww... You sure about the MSM vs QSD? They list the Xperia play as having a MSM 8655, which is then later listed as a Snapdragon II? I know the difference is 8650 vs 8655... but I am trying to keep hope alive
Yeah its definitely a mistake by Verizon as there is no way that the Trophy has the newer Snapdragon. It's definitely QSD8650 i don't think they would improve the Trophy that much for Verizon plus that would make it the first phone with 2nd Gen Chasis/hardware which im sure would be made a big deal.
Also that would give it the Adreno 205 GPU which also isn't in any WP7 device yet. So I dont think there is much chance it is anything better then what is out.