What are you going to miss out on? No GSM? Big deal, you aren't going to want to pay the data fees in europe anyways, so you are better off with a 10 dollar nokia and a prepaid sim card in it if you ever travel.
1.2 ghz processor? If the D2 gets hacked fully it will be easy to overclock to that level..the processor is probably almost the same unit. 200mhz makes way more difference on paper than it doesi n real life.
I like to think that motorola isn't silly enough to water down their own market, but we'll see.
What does the D2 not do that a new device will do? The only thing I want to see is a smaller D2 or a D2 without a keyboard (and not DX sized) or a d2 with a really good keyboard instead of a "good enough" one.
The only real time to upgrade will be when the next gen 4g or whatever they want to call it network is in place. Then we will want devices that can use that equipment.
Until then, relax and enjoy your phone. I think VZW has a good lineup with the Droid 2 and the Droid X. I don't see why they would want it to be totally muddled up and confusing with a bunch of new droid devices from motorola. Customers can barely decide what to buy as it is, let alone with 2 more premium handsets from motorola.
I don't think we really need to worry.