I honestly miss MK9. I overall prefer MKX, but MK9 is I think the MK game I played the most, I was only 10 when it came out, and I played it religiously. It honestly changed my life. MK9 was just amazing, I REALLY hope they do a complete remake, same stages, same voice acting, same moves, etc., just more balanced and with better graphics. I wouldn't even be upset if they modernized the outfits and added in some of the ones from MKX/MK11/MK1.
A modern day MK9 could honestly I think be one of the best selling fighting games of all time, especially since now on PlayStation 4/5, you can't play MK9 at all. Just imagine it, MK9's roster and gameplay with updated Krypt, updated models/stages, improved netcode, removed weird bugs like Jax's kick combo and a more normalized Kabal/Cyrax? Oh, we're cookin with Crisco lol. I would probably start crying if hey ever announced it.
Edit: Oh, and imagine if it was treated like a typical release, like, they did the MK9 Remake and actually added on to it with additional DLC, stages, costumes, and stuff as time went on. Like, they had a "Newcomer" Pack with D'Vorah, Kotal, Erron, Takeda, etc.