There are NO differentiation on the packaging at this point in time. They did say they are goina be sneaky about it and so far they are using the old boxes. There is a slightly different serial number on the card. So if you buy new cards you will not know until u open the box up.
For cards being sold at retail, the new LHR 3060 Ti, 3070, 3080 etc. will definitely have a LHR indication on the product listings and packaging.