They should bring back the form factor of the original 7-11 Big Gulp cups, the short squat ones that looked like a mini-bucket. If they go for making it taller as the graphic suggests, then it may look like a less daunting drink. Plus, I didn't know our stomachs were so small. I guess that's why with the 24 oz soda bottles I feel full afterwards.
Drink better coffee not more.
http://news.nationalpost.com/2011/01/17/graphic-how-big-exactly-is-starbucks-new-trenta-size/