The “HS Factory” library (which is the original Halion Sonic 1 library) included with Halion 7 and the Halion Sonic 7 Collection includes most of the acoustic instrument samples introduced with Hypersonic 2. The Halion versions use the original stereo samples of the instruments, as well as dozens of articulations which weren’t available at all in Hypersonic 2. Some of the instruments were replaced with equivalents which were also used by the Yamaha Motif XS workstation.
All presets were programmed from scratch by the Yamaha Motif sound designers and the Halion team.
The ensemble strings from Hypersonic 2 were sourced from Halion Symphonic Orchestra, which is part of the Absolute Collection.
Of course, the synth presets from Hypersonic 2 aren’t included, as the synth engines are different, but Halion features modern equivalents to all of the Hypersonic engines. You’ll likely find some similar presets in either the included libraries or one of the expansions.