I find two things interesting about it so far.
The first is that the autocannon are sold separately despite the experimental rules not giving you the option to swap them for anything or refrain from taking them, suggesting that the non-experimental rules will have more options. I'm hoping for a magna-melta array, though volkite stuff would also be really cool (except hot).
The second is the phrase "80mm plastic base." The base in the pictures is pretty clearly round, so it's not the Carnifex base from Deathstorm, and AFAIK no plastic kit yet released has an 80mm round base. I wonder what will be coming out from GW on that base?
Now to go run the maths and see if the autocannon array is better at obliterating Stormravens than a skyspear missile...