Yes, the DSP8000SE is real true to the source. If the source is upgraded or more High-Def the DSP8000SE will render it.
I have only heard a pre-production 818v(3) on the DSP5200SE speakers and it was half a year ago. Alot has happened since then but I expect we should be able to hear the new versions 818v3 and 808v6 before christmas.