Yes, Vilnius is the only city in the Batic States where old Škoda trolleybuses are still working. But I hope that by 2025 old trolleybuses will be replaced by new Škoda 32Tr vehicles
I see new Solaris trolleybuses, so I doubt that the city will decide to buy trolleybuses from Skoda, especially since Vilnius uses Solaris buses, unification significantly reduces operating costs.
By the way, Skoda Transportation, the company that produces buses today, has nothing to do with Skoda Auto that produces passenger cars, they are two independent companies. In terms of urban transport, Solaris has a greater reputation and share in the urban tramsport market in Europe than Skoda. Solaris sells buses and trams to the very demanding markets of Germany, Belgium, Italy, Netherlands, Austria, Finland...