Conan in a fancy suit and wedding ring? So cute! He's looking at it rather puzzled, like he's not sure how it got on his finger! Conan, I hate to break it to you, but you still have to find an antidote first, before you can take that step! Of course, if Gosho ever decided to tell us the actual timeline so we could tell how old Conan is supposed to be after all those mysteries, and if there's any link between Vermouth's never aging and the formula Sherry was working on when she accidentally produced the APTX 4869, Conan just may never get any older unless and antidote is found.
If the Black Organization was destroyed, but they're still not able to find a cure, will Shinichi remain Conan-sized forever? If so, and Ran found out everything, what would she do? Would she accept Shinichi as a forever-child, or have to leave him behind and find someone else?