Nope. I believe nobody will mention about it until they officially introduce the participants. If there is no animosity between Japan and Korea, this is actually a really good opportunity to expand her fanbase and that is always a good thing for her career in the future. Initially, based on the PD101 premise, I thought 48G would only sent lower ranked members. If Sakura, Jurina, Yukirin, Juri, Mirurun, Mako in it then I can see management giving some priority to this project. Jabaja promotion started late because of WIP and stop early probably not only because of Teacher Teacher but also because of PD48. Teacher Teacher itself might be related to this PD48 thing with the Kpop influence (yes, I know that the current Kpop is not like that, but for me and many people, the intial Kpop boom was with this type of song thus associating this type of song with Kpop). If management is willing to sacrifice Jabaja promotion time for this, they might do similar thing in the future (prioritizing project where Sakura and Jurina are in it). Also about the contract thing. I don't think it will be applied as strict as to the korean participants. I don't think AKS will simply let go multiple top members for a couple of years. They probably will do 48G and PD48 jobs.