Wireless standards evolve too quickly to embed LTE equipment in any DirecTV receivers or LNBs. LTE is no longer the fastest standard, it has been surpassed by LTE-Advanced which is currently being field tested around the world. Verizon is rolling out an enhancement called XLTE that bonds two frequencies together (from different wireless bands) to double the bandwidth. I'm sure AT&T will embrace one of these two soon. If you want to integrate wireless, it would make more sense to use a wireless modem module that can be upgraded independently of the rest of the installation.
Hasn't DirecTV already demonstrated IP delivery. I seem to remember a HR20i being field tested a few years ago. If I'm not mis-remembering then the technology already exists.
What I was responding to was the idea that AT&T would add wireless capability to Directv for rural/remote customers who live where there aren't wired broadband options. I'm not really convinced they'd package the networking together either, but I could see pros and cons for putting it on the LNB versus making it a separate unit.
I wouldn't worry too much about faster technologies coming along though, since older ones don't go away until many years later. This would be targeted at rural customers, who don't have LTE today and won't be getting it for a few more years. AT&T has said they won't decommission Edge until 2017, which I take to mean it'll be that long before all the rural areas are upgraded (to LTE, not 3G, because LTE has a longer range) Once they're upgraded, it will be eons before they get another upgrade, so I wouldn't hold my breath waiting for LTE Advanced anytime soon if I lived in an area that is still on Edge today.
As for the H20i/HR20i, it was used for a new generation of Directv's MDU technology, but they never pursued it (not sure if it was cost or other concerns) Basically the dish was connected to a very expensive headend that demodulated the channels in parallel - and therefore needed to be upgraded as Directv added new satellites. I don't believe it was really all that different than a C31 connected to a Genie as far as how the IP delivery part works, though. It is just the difference between being limited to 5 tuners and having 1000+
SL5, PI-6S, SA-6AL, 3xSWM16; 21 H20-100, 1 H20-600, 7 H24-700/AM21