I am not sure they have a lot of details to release at this point... still 2 years to go; probably not even in the testing stage at this point.
Well the article did say they were testing these questions. It said that they were a year ahead of schedule.
"INTERPRETING TABLES OF DATA
In one sample question that GMAC has released, students are asked to look at a table that sorts like a spreadsheet and detail the number of passengers and airline movements at 21 airports around the world. Students are then presented with a list of statements about the information in the table and asked to determine which of the statements are true based on the data in the spreadsheet. Other exercises ask students to use the same table to assess the reason for or likelihood of certain outcomes, or to use the table to determine where other airports rank."
Interestingly, they added that the GRE was going to be reformed as well:
"The GMAT's changes come as it faces an increasingly important competitive threat from ETS, which has persuaded hundreds of business schools to accept the GRE for admissions. In August 2011, ETS will unveil its own revised test with new features designed with B-schools in mind. They include new types of questions in the Verbal Reasoning and Quantitative Reasoning sections, new answer formats, and an on-screen calculator. David Payne, an ETS vice-president and chief operating officer for college and graduate programs, said in a statement that business schools and test takers have given positive feedback, adding that ETS is "completely focused" on the changes."
Here's another interesting tidbit:
"During portions of the section, students will wear headphones, a new feature that will help schools assess students' auditory learning style"
So we might see (or rather hear) a listening portion too.