Either way if Adam is alive, since there was no body recovered just a watch that means Adam is not dead he is alive but the GCPD presume Adam to be dead along with everybody else in town so what if all including Chelsea and Victor have Adam declared legally dead?
Then if that happens, cue Adam's return to Genoa City...
But how I would do it would be that in a hospital in Europe, preferably Switzerland there is a man lying in a hospital bed badly burned to the point where he was disfigured and he is bandaged heavily in terms of his face being heavily bandaged while he is lying there he is able to move and day by day he gets more stronger almost to the point where his bodily functions get more stronger by the day and he is recuperating in this Swiss hospital but he is still heavily bandaged obviously
Cue the bandages coming off as the doctors begin to prep him for his facial reconstruction surgery but in his hospital room on his table there is a picture of Chelsea and his son Connor...the heavily bandaged man is revealed to be Adam who is still badly burned in terms of his face
Then Adam ends up getting the plastic surgery to reconstruct his face and after that is said and done, nu-Adam has a "new face" quite literally as he is recovering from his surgery
But he eventually leaves the Swiss clinic in Switzerland to make it back to Genoa City to prove his innocence that he wasn't the hit and run driver because he starts to suspect that he didn't do it and that he was framed for the crime
Nu-Adam then heads back to Genoa City new face and all, is going by an alias, the alias being a fake name/identity as he then ingratiates himself into Genoa City society where he ends up seeing everyone again in town but they have no idea that this man is really Adam with a new face, they only know him by his alias since Adam would be unrecognizable to them all including Victor
Then nu-Adam comes face to face with Chelsea and when he does she will have no idea that this man is really her husband Adam or that he is really Connor's father but she will of course be drawn to nu-Adam in the sense that Chelsea is trying to move on with her life as a single mother raising Connor since she had her husband declared legally dead only he isn't dead and he is alive but that he is this new man that she has been drawn to since Adam has a new face
Chelsea she of course starts to fall for nu-Adam but she of course thinks she is dishonoring her husband Adam by moving on even though she has no idea that the man she is moving on with is really her husband Adam with a new face, with plastic surgery
Of course nu-Adam and Chelsea start to fall in love more and more while she only knows him by his alias, and then Chelsea brings nu-Adam around Connor with Connor who of course at this point will be SORASed to about a toddler
Nu-Adam all the while under his alias starts to prove his innocence as he then ends up finding out eventually who the real hit and run driver was that night who killed Delia as nu-Adam ends up finding the proof of it himself so he decides to host a party at the GCAC and that he personally is hosting this party because he wants people to know just who the real hit and run driver is but also he wants people to know who he really is
Cue the party as everyone in town anyone who is anyone will be at the GCAC, and nu-Adam under his alias new face and all as the host of this party makes his entrance into the party by telling them all that the reason they are all gathered here at the GCAC is because he wants them all to know the truth, the truth being who he really is but the truth about a certain little girl's death, that being Delia Abbott's death
Nu-Adam then shows everyone proof that it wasn't Adam who ran Delia down that night and that the real hit and run driver that night was none other than Kelly Andrews which shocks everyone including Billy and Victoria as well as Chloe and Kevin and Victor and Chelsea as well as everyone in the ballroom as they realize that Adam is innocent of the crime and that Kelly did it
Of course Kelly she is naturally shocked as she starts to tell everyone that she had no idea that she even hit Delia and that the reason she doesn't remember doing it was because she was drunk that night so drunk that she blacked out while she was driving
Then nu-Adam starts to tell them all that the other reason they were all gathered here in the ballroom was because he wanted them all to know that the name they know him by is not his real one and that he is not who he said he was and that his real name, the one he was born with was Victor Newman, Jr.
He then says to everyone "My real name is Adam Newman and I'm home!"
This of course shocks everyone including Chelsea and Victor and Jack especially as they are all in disbelief that he is really Adam until he makes his case saying that he had plastic surgery done on his face
Chelsea then says that she was drawn to him right from the start but that she had no idea that he was really her husband but also that she had him declared legally dead
Of course Nick, Victoria, Abby, Avery, Dylan, etc. are all in disbelief that he is really Adam as well as everyone else there at the party including Billy, Kelly, Neil, Tyler, Leslie, Devon, Lily, Cane, Michael, Lauren, Jill, etc.
Nu-Adam then says to everyone that if they want him to take a DNA test to prove who he really is, he will do it because at this point he has nothing left to hide nothing left to lose
He then ends up taking the DNA test and it proves beyond a shadow of a doubt that he is really Adam
But also Kelly ends up being arrested for Delia's hit and run