Team Liquid from what I watched of them on and off against OG like like a solid contender out of the four remaining teams in the tournament.
So just Aster and Tundra with those teams left to compete for next weekend.
i saw how to play team secret when against TA didn't even give a chance to win even for a draw.
and i also saw the last game of team liquid against TA when liquid was very fast to conquer TA not exceeding 34 minutes. even though usually every dota 2 game takes 34 minutes more but team liquid doesn't need to take long.
and the possibility that team secret and team liquid will meet in the grand final later