Clarification? Elaboration? Continuation? Explanation?

As you are well aware bleach fans: The Fake Karakura Town Arc ended in....to be honest, disappointment. So many things left unsaid and unclear. The following is what is missing: Grimmjow's status, Nel's status, Gantenbainne's status, Isshin's status, Masked fighters aftermath, Ichigo's classmates thought on him, and other arrancars fates (loly, menoly, etc). Well, it comes to this question: IS THERE GOING TO BE ANY EXPLANATION ON ALL THIS OR WILL IT BE LEFT ALONE? I truly DO hope there will be more than just leaving out things. I believe Tite Kubo will fill in the story, but it's so tiresome to not know. Well, there is this new Arc and two others. Hopefully, questions will be answered with answers.