The VA7 shares many sounds with the XV series (and maybe also the JV expansion cards), but the editing possibilites are by no means comparable to the 5080/3080 and the same goes for the effect section, so I don't think that they share the same engine.
Too bad...
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Korg Kronos 61 and PA3X-Pro76, Roland G-70, BK7-m and Integra 7, Casio PX-5S, Fender Stratocaster with Fralin pickups, Fender Stratocaster with Kinman pickups, vintage Gibson SG standard.