Welcome back to the Wefugees Community and thank you for your question.
Unfortunately, the new law (the so-called "Chancen-Aufenthaltsrecht") is not yet confirmed by the parliament(s) and thereby not implemented yet. This means that we can not give reliable information on the potential section 104c of the German Residence Act yet and that I can only speculate or assume. As people are suppose to change from the residence permit according to section 104c to the residence permit according to 25b (or 25a) after one year (if they meet the requirements), similar rules may apply as currently for the 25b. With this residence permit, you are allowed to travel to your country of origin. Please see this thread and also this conversation in which we discussed this topic before.
The residence permit according to section 104c (as it is currently designed) is not a "Duldung" (which would prohibit to cross the border or better to say to re-enter Germany) and it is not a humanitarian residence permit issued because the applicant is not able to return back to the home country (for safety or other individual reasons) either. Therefore, I can not think of a reason for the time being why it should not be able to travel.
But again, if we want to know for sure, we have to wait for the final version of the law and the implementation.
I hope this helps and please don't hesitate to get back to us with any further questions.
All the best,