My abutment fell off. One hole has pus and my dentist just punched back the abutment on a closed gum. Thoughts or advice?

Yes  you are going to have an overbite because it is your normal occlusion.  The doctor can improve it a bit with the final prosthesis, so that your smile is better and improve your aesthetics

Taking anti-coagulants will be a concern. I would suggest seeing a board certified oral and maxillofacial surgeon who does lots of implants. Many of them also have M.D. degrees. Have them do a complete exam and consultation and see what they think your options are.

If you want to compare please compare the recent photos, the photograhs here look with a gap of more than 2-3 years atleast or even more, the extraction space gaps take atleast a year to completely close, i guess you should have taken a proper explantion before the start of the treatment, about...

Yes, placing dental implants and an arch of fully-supported teeth in the upper will restore your natural face shape. Sometimes even more lip support can be given but it depends on the patient. 

While it is recommended to see your dentist on a regular schedule, it is even more important to continue seeing your dentist before a joint replacement. The bump above the implants should be evaluated by a dentist, be it the one who placed the implants, the one who placed the crowns or...

Hello! I think you have a possible infection from how I see from the photo. Possible periimplantitis. Go back to your doctor and check for it and also you can do an X-ray to check for bone retraction or infection.  Sanatate!