I've seen this play out in three different ways: (a) student gets new supervisor, (b) student moves to new university, (c) student stays at old university but keeps the same supervisor in spite of the supervisor moving to a new university (depending in your institution, it may be necessary to get a new "official" supervisor for paperwork-filling-out purposes).
As other people have said, talk to your supervisor.
In principle, the adviser should have told patty all of this, and made plans with the new school to bring students over. Most of the reasons I can think of for him not to do this (he doesn't care about his students, or dislikes the original poster) are signs that the original poster needs a different adviser.
If you really want to work with him, I would follow him. As a condition for moving to another university, I'm sure he could stipulate that he be allowed to bring in some people.
Perhaps you can just be a research assistant for a year.