Bobrova and Soloviev have been quite clear regarding her plans and her being aware that he may want to find a new partner as her return is uncertain. All this - Elena and Nikita's tryout, speculations on Soloviev's possible new partner and speculations that he may already in fact have one came from a recent TSL episode. I wouldn't take any speculation as relevant unless it came from a source whose many speculations and insider info turned out to be true.