Anxious? No.
Will I be interested in what voltage each head (LX1 and LX2) will accept and how I will use them? Yes.
Will they be better than the modded KX1 I have now? Probably not, since it is a ~200L Cree Q3 3A SOB1000 that can run on 3-16V (3-5V at less output). The LX2 head will probably be a single level KX2c that uses an L1/L2-like driver so it doesn't give the low-battery warning strobe of the KX lights when running through a resistor. I can put my SOB1000 KX1 on a modded L1 body already...
Will it be a very cool light for those that don't already have a similar mod set-up? YES.
Will you have to wait? Yes.
How long? Who knows! Use what you got until then! ...geez.
Will I eventually get an LX1 body to make a shorter leggo L1? He** Yeah!
1st gen L1 head, LX1 body-tail for a sub-4" rocket with a K2 TFFC direct drive off IMR16340 at 2Amps high (300L!), 100mA low (higher resistor modded tail) through an 8° optic ... Here I come!