Glad that you are doing these as an alternate option. For midichlorians I would consider the Phantom Edit route of adding back in oblique references but keeping out the exposition dump Qui-Gon gives to Anakin.
Yeah, I think this is a good compromise. I think most audience members can surmise that they are a singular indicator of a person’s potential in the Force just based upon the scene between Qui-Gon and Obi-Wan on Tatooine. Disney canon does nothing more with the concept beyond this.