Honestly? If I were remaking Ranma 1/2 the anime for the modern age...
>Realistic Version
Complete relaunch of the series; basically the original Ranma 1/2 anime with superior animation and actually going all the way to the manga's canonical ending.
>Dream Version
As above, but build from the original anime's divergences. Make the love interests and rivals deeper than just generic obstacles for Ranma & Akane's love, make Ranma & Akane actually develop a working bond with each other, and have them finally end the series with them getting married instead of hammering the reset button like Takahashi did in canon.
>Crazy Fanfic Version
Go full-on ultimate universe and rework the series to keep the basic idea - Ranma, a martial artist who reluctantly turns into a girl has to juggle a complex lifestyle of crazy martial arts challenges and way too many love interests - but do different things with each other.
Merge Ryoga and Ukyo together into one tsundere/in-denial reverse trap waifu who is also Ranma's dedicated rival, and even after she admits she loves him still makes their dating life practically a challenge in and of itself.
Make Kuno a legitimately skilled rival who grows in talent to threaten Ranma like Ryoga did in canon - and have him bring in crazy magical threats and monsters as a way to try and even up the odds.
Make Shampoo a legitimate female martial artist and give her a legitimate shot at Ranma's heart.
Have more Chinese Amazons follow Shampoo from China and set up shop in Nerima as a source of plot hooks and background comedy.
Make Nabiki and Kasumi deeper than the shallow puddles they are in canon. Maybe one or both of them actually starts nursing a crush on Ranma but is unwilling to step forth into the ring.
Make the choice of who Ranma will hook up with less obvious from the start. I'd personally have Ranma hook up with anyone who isn't Akane, but I'd settle for just making her less of an inferior choice to the other girls and making things be less blatantly weighted in her favor.
Let Ranma get a happy ending. Let him pick one (or more) girls to marry, find a cure, or at least start on a treatment regime that'll ultimately fix his gender bending problem. Just something better than just ending everything with a cocktease!
>But.. all of that's just me. I don't know what other anons would do.