Yes. The HDMI 1.3 will pass on DD TrueHD or DTS-HD to a receiver capable to decode these codecs provided HDMI is set to Bitstream in the player.
For those with present receivers, the player will decode the new codecs via:
1. HDMI when set to PCM
2. multichannel analogs
Conclusion: The purchase of the new Samsung BR player does not require a new receiver. But you can make use of the new receiver if you have one.