Considering that Servisair have their own financial problems to deal with at the moment, still trying to integrate GlobeGround, turn around their business and deal with some financial blackholes - putting energy into buying another company doesn't make sense.
Flight Support seem to be doing a good job as an independent handling agent which is hard in these days of having the big four (Servisair, Menzies, Swissport and Aviance) and I hope they continue to flourish. Menzies and Aviance have grown to the size they're at now mostly through acquisitions so if there was to be a buyout I'd imagine them over Servisair.