I'm thinking LG and the carrier partners will soon abandon software support for the G2. There are rumors that the G3 is almost ready for market, with the fact that everyone is watching what Samsung is doing the GS5, LG might do an early release. The AT&T model of the G2 has CarrierIQ onboard and actively collecting data. I would say that's otherwise not too big of an issue, but from what I'm reading there's a pretty serious battery drain flaw with how CIQ operates the GPS in the phone. Plus other issues which I think will take awhile to be sorted out.
The G2 is a really nice device that failed to find an audience and will suffer support-wise as a result.