With the Baby out of the way, peace returns to Earth. But evil things are being done in Hell. It seems Dr. Gero and Myuu have conspired to create a new android, Super #17, and seeks to get back to Earth and kill Gokou. Well go to the link above to know what's the latest development in Dragonball GT. For now look at these pictures of the characters making appearance in the next season of Dragonball GT… (Courtesy of Toei TV.) 

Android #17

#18

Dr. Gero

Dr. Myuu

Super Android #17 

Cell (Upgraded) 

Freeza (Upgraded)