Recently converted from ShinRan to AiCon. So Haibara, doi
I don't doubt for a second that Ran is endgame. And despite being an AiCon shipper, I would hate to see a ship that has been sailing for so long and successfully sink at Gosho's whim. I can't imagine him finding some way to execute a sudden change to AiCon without completely disregarding the characters' own, well, characterization, much less justify it for the fans that have been following the series for years and years and years. Unless, of course, Ran dies. I used to look down on people who suggests for this to happen, and I still dislike it albiet to a milder degree, but yeah, that's pretty much the only way AiCon can happen in canon. This is even worse for the ShinRan shippers though. (Anyone who has stayed with the series since its beginning pretty much has to be a ShinRan shipper to some extent, fending off those criticisms like crazy. Dropping a rock on it would be plain cruel.) I think it's safe to say that there's no hope for the AiCon shippers (and KaiShin, lol) to ever see their dream go canon.
Nevertheless, I stand by AiCon. She's such a complex character with a strong theme of finding a loving, nurturing environment to live and have a future in after being raised in the Black Org. She seems to have found that among the Detective Boys and Agasa, but if Conan is able to reciprocate her feelings for him, then gah. Sweetness overload. (I like the theory about Haibara refusing the antidote to relive her childhood too. But AiCon is sweeter. I mean, can you not see Shiho and Shinichi taking a walk in the park, holding hands and eating ice cream? While the DB goof around them and tease them for having a sappy smile on their faces??)
For those who like Ran for her loyalty, patience, etc etc, I don't know what to say. I respect your opinion, but I personally never judge a character by the same standards as I judge a person. For example, I love Lelouch, and he's a terrorist. Or Loki, and he's a bad guy (idk exactly where he stands in the newest material though). These characters are horrible people (for the most part), but they're interesting. Ran is an amazing person, but she's boring. Haibara is actually both an interesting and kind person, so I'm sold. And a plot twist like AiCon would definitely spice up the series, romance-wise. (Too many childhood friends-turned-lovers.....)
tl;dr: AiCon ftw