It's great to have all the newer options, although the HS demo video doesn't show off all that much yet (and there are things here and there that sound a little off, and it seems like the divisi is faked instead of real divisi).
What I really want to hear is similar musical phrases played on Vienna, HS, and LASS - most demos seem to be full orchestra and it's hard to find directly comparable passages - at this point all the libraries sound good overall so what is interesting is putting specific aspects like runs, legato/portamento etc under the microscope.