Yes they certainly have a bright future. If you look at the Chinese players rankings, they've all improved from last year by a lot, except for Zi Yan. But they need to have better schedules, sometimes their crappy schedule holds them back.
I disagree with Zheng being untalented, she definitely is talented and has more power than you think off the ground, however her serve isnt that powerful, but you cant expect much when shes only 5'4".
The tournament where the umpire favoured the Chinese players was in Wulanhuote, which had a very bad reputation this year, but no other tournament seems to be like that. The mens and womens tournaments in big cities like Beijing and Shanghai have all received very good reports from the players.