If Gen.G wins Worlds this year, can they keep Kiin and Canyon??

Both of them gathered to win and actually won.
Canyon is on track to achieve everything, even getting an exemption from military service.
Neither of them are one-club men, but they've been there for quite a while.
I'm not sure about their loyalty, though.
Kiin is on a one-year contract due to military service.
If Canyon enters the market, there will be piles of money waiting to replace everyone except Kanavi.
Do you think they can maintain this roster next year??
Even if they hit the salary cap, will they pay the luxury tax to keep them?