teddy:

Is it possible to plug in firewire my H8000 to my computer, have 16 output from my daw

No – you can only process 8 channels from FireWire – you are limited by the number of main inputs and main outputs. The H8000 is essentially an 8 channel machine with 2 engines, rather than a 16 channel machine. Sorry.

teddy:

Also, are they yet presets and routing presets that uses this standard configuration

Again no, because this is NOT a standard configuration. Note that routing presets are described in the User Manual, not the Presets Manual.