There are new r2 versions LHG60 on the market.
the image of "old design" is actually a bit different for the LHG60. the LEDs are on the side populated, and there's no DC barrel jack on the PCB. see images from an actual LHG60 i took apart.
with regards to the internals (the block diagram on routerboard.com confirms it) the old LHG60/wap60G is built around the QCA6320 baseband. the new stuff (wap60Gx3) bases on the QCA6335 baseband. the RF stage and the phased antenna array are the same in all cases (QCA6310), but the beamforming pattern is wildly different for the wap and the lhg units.
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