Which HUD will Worlds use?

I highly doubt they'd suddenly do a huge change like the one that was previewed earlier on for a major event. Any spectators that didn't preview it would have no idea where they'd be looking and need to adjust where their focus would need to be throughout the biggest tournament of the year. It more than likely will come at the start of Season 7 so people have time to adjust to it before any major tournaments pop up (plus they need to ensure they give people something to complain about each season).