I'd say V1 and Sen in the uppers and two of Ghosts, Knights, LG, 100T, or NRG in the lowers.
I think V1 and LG qualify in uppers and Sen and Knights get through lowers (although I'm not sure if they run into each other before that). V1 should still be good enough even with wippie gone to easily qualify and I think LG performed very well in the last VCT playoffs and they beat Sen out for the spot as they have more time to gel with bdog. Sen make it out of lowers and Knights have been looking good lately. My dark horse would be Ghost Gaming making it out of the lowers since they have also looked good recently on their new comp.