Bigger Chin and a Smaller Nose Possible?

Yes, that is possible. To know for sure, I suggest beginning with an in-person consultation to discuss your options. During your initial examination, your #chin will be evaluated along with the neck and jawline. A weak #chin implies a lack of chin support for the skin along the neck line. In younger individuals a chin implant alone is usually all that is needed to improve the appearance of the neck. Subsequently, it will also improve the overall #balance of the face and can create the illusion of a smaller nose. As a stand-alone procedure, chin augmentation can be performed in the office under local #anesthesia. For individuals with signs of #aging in the neck, a chin implant added to one of the recommended procedures above, will provide optimal results. Also, #liposuction under the chin is also another option your doctor can discuss. If you are not a candidate for chin or neck rejuvenation at the time of your #consultation, your board certified plastic surgeon can recommend alternatives to address your concern. 
However, there may be additional options to improve the appearance of your concern to improve the overall balance of your face. Such can be best evaluated in-person. Consulting with a board-certified plastic surgeon who specializes in #face, #neck and #chin procedures is important to ensure you are receiving the best advice, care, and surgical experience possible.

Both procedures are possible in recontouring your nose and lower face. The analysis is very good and can be translated into a surgical contouring procedure for your face.

I think what you have morphed with digital software balances you face more and is completely possible. It is a subtle change but makes a big difference in your appearance. You can easily accomplish this with a closed rhinoplasty and a chin implant. The total procedure would be minimal and can even be done under local anesthesia

I think the "after" photo you produced is a much better balanced face than the before. In my opinion, the chin implant will make a bigger improvement in your appearance than the deprojection of the tip and you may wish to consider the chin operation alone, which has a speedy recovery.

The procedures you have illustrated using computer imaging of your afters should be achievable with chin augmenatation and a nose job. Please realize that these should be used to estimate but not to predict the final result.