I understand the OP question, and why he's asking.
A different way to say that, would be :
What could we expect of a KV 2 ?
1) A lot of things better than the KV 1, so I should wait.
2) Minor improvements that won't make a KV 1 obsolete, so no reason to wait.
Unfortunately, the answer would be only guessing.
If we talk about hardware, I don't really see what a KV2 could improve.
- Mabe a better and faster processor ? Nice, but the KV one is good enough.
- A larger screen ? Why not, but not everbody would like something bigger.
- Colors ? Don't hold your breath
- Wireless charging ? Ok, but 'you'll have to buy a good charger (30$)
There's the only Hardware improvement I can imagine.