I would enjoy Fnatic being the #1 in Sweden but I can't see that happening soon. Ever since Golden and Lekr0 left Fnatic have declined and it doesn't seem to be because of the players but more about the attitude and the joy.
NiP currently have a better IGL than Fnatic and he is just new to the role but already do it quite well. Hampus is just like every other good Swedish IGL (Bad fragger, bad impact player but great caller), but I don't see him being better than Lekr0 or Golden to be honest.
Xizt is the protogé of cArn so I am fairly certain (I've been wrong before about this) that Xizt won't leave until cArn does. And even if he did leave, who would they bring in instead? Golden is getting so much more positive feedback from C9 than he ever did in Fnatic, Lekr0 won't come back, Hampus is, as mentioned above, not good enough player to be IGL for a top team.
Olof will probably not leave Faze clan soon. It will probably be some huge International shuffle in late spring 2019 and then he might leave, but until then I don't see it happening. Would he go to either C9 or Fnatic? Can a Swedish team be top 3 in the world without f0rest (as of now)?
I love Flusha as a player, he and Pasha is why I started playing the game and why I watch as many matches as I have time to, but I don't see him getting top performance in an all swedish team again. Under Golden he might, but he won't play with Krimz for a while, he will not join NiP, so who would he play with? It would be C9 with Golden, Flusha, Olof, JW and perhaps Rez or Freddieb. That might be a good enough team for top 5 positions as long as Flusha doesn't berate the team players. But I doubt it. I also doubt C9 leaving their base in US.