Students still cannot go solo in "enhanced" Class B airspace.
Don't let this put you off though. Schools that lie inside this airspace are getting around this by having student and instructor fly and land at an airfield outside Class B and then have the student start and end their solo flight from the new airfield.
It takes more time and the instructor probably won't be too chuffed hanging around a different airport while you do your solo but, heah, it will get the job done.