we know of Sayf, Trexx and Less so far (insane core)
but now Kadavra is most likely joining G8 as their smokes and he and Profek were both contestants for the smoking role -> so the theory is he got snatched away and looking at the rosters it was 90% either GX, TL or Vit and Vit is most likely, having the highest payment and the best looking roster so far
also we got news that Mada is joining NRG as their duelist so NRG Derke is no more and Vit was the only other notable option for Derke so VIT Derke is also very likely
if Vit switches Cender (also smoker) with Profek
and put in Derke as their duelist and making Sayf the IGL, the roster will look as followed
Derke (duelist)
Trexx (main Initiator)
Sayf (flex/IGL)
Less (sentinel)
Profek (smokes)
that roster looks absolutely insane on paper and if they get a good chemistry its joeover for everyone (triple final wins this year for Vit)