After reading the following article, some thoughts came to mind.http://aramatheydidnt.livejournal.com/2986300.html
"The concept of this is a not-yet-perfect girlband," said Akimoto at the Grand Hyatt, Jakarta, after being a jury in the final audition JKT48.
The key phrase is "not-yet-perfect". While different from "idols you can meet", JKT48's concept is a good market differentiation ploy IMO. Given that there's already several girl-bands in Indonesia that are readily "packaged", the allure of "not-yet-perfect" gives JKT48 an approachable or girl-next-door feel to the group which can garner both interest and sympathy from potential fans and the public at large. Sympathy for growth will be the emotional basis for fans continued interest. Note that as people tend to cheer for their favourite American Idol contestants and whatnot, people also cheer for their favourite idols to perform their best and sympathise with them when their performance is less than perfect. This is perhaps a reason why some wotas keep cheering for Nontii dan Meetan after they were transferred to SDN48.
Admittedly, I myself like AKB48 because of their fighting spirit. The fact that each member are pronouncedly trying to do their best to entertain is endearing and it's what won me over (aside from Iiwake Maybe-one hell of an effective stress-repellant!
). And with this, I subconsciously associate "fighting spirit" to most anything that AKB48 members do. When I listen to their songs, I get a sense that they're trying to sing their best. And from this mental association, I become energized in the workplace.
From the above notions, I conclude that the songs that might be sung by JKT48 won't be about "lovey-dovey" or trivial subjects. But rather, songs that most people can relate to. This approach is exemplified by Shoujotachi yo, a song with "zenryoku de" and "ganbatte" in its chorus placed as the first song in their album. One of the things that turned me away from 7icons, Cherybelle and Princess is that I can't relate to any of their popular songs. On an unrelated note, Cherybelle's Dillema sounds to me like a female version of Kahitna.
And on the subject of team J having 28 members, I'd like to quote Aki-P:
Carrying the same concept to its predecessor, AKB48, this girlband will have to be close to their fans. Stay down to earth and can do a show every day.
Many of those girls are high-school aged. I'm thinking that having 28 members to shuffle for daily shows is advantageous as I'm sure some of them have academic commitments. If a theatre location is announced, I can go ape over live shows!
Anyhow, what I've said so far are just my personal expectations which can come true or otherwise.
In any case, I'm über excited to see (and hear) JKT48's first single.
Ganbare JKT48! Addendum
It seems that a JKT48 member, Sonya Pandarmawan has already starred in a commercial and a sitcom before she became a member.