I am guessing soon, I would suggest that they print the group number like 5 cm tall to make sure everyone can see it. I personally don't mind it but whether *G vs. *S should be separate, that I am unsure, really depends on how many *S there is. AC doesn't even provide Prestige with priority boarding right now.

At IAD, it was a 767, the GAs use the terms "left-side carpeted line" and "right side non-carpeted line" and instruct the next group to line up using the emptied line. This actually worked amazingly good as it allows two groups to line up at the same time. Downside is if you got there late, there is no way for you to get to the front of the line even if you have status. This did not happen at ORD but the plane was much smaller.