We have already heard murmurings that the LG G5 will be rootable on day one. Many who are actually responsible for the root methods have come out saying they have workable exploits. Their is already a system dump of the H850 variant available for download.
This means we may also see rom development and other developent coming in fast and heavy. Rom developers will be able to use the System dump for this purpose. This phone is already looking far more dev friendly then the locked down Snapdragon version of the S7 and S7 Edge. Developers are already digging through this systme dump. To see what they are finding head to the link below.
via XDA