It's going to take at least 1 year for the important Python scrits to be updated or replaced. So you're going to need to hold on to Poser 11 for at least this long. But for all the new things and the big speed improvements in Poser 12 you'll want it anyway. Why not jump in now and enjoy the fun of finding all the new things people discover. Check whatever you find interesting and learn new things. Follow the discussions and experiment, learn by doing. In a few years you can become one of the experts. Right now is the time to learn together with all the other users.