Face asymmetry - will they slowly become asymmetric again due to the torticollis? (photos)

We can surely symmetrize your jawbone, but all the issues related to soft tissues are harder to work with and would need an in-depth study to see what can be done.
You have to bear in mind that as long as the underlying cause of the assymetry (the torticolis) isn't solved, this forces (the muscles pulling) will continue to act on you, so the possibility of relapse is important. Having said that, a continued treatment could be helpful in maitaining the results to an extent ( with fillers, or even follow-up surgeries)