I guess I'm joining the support! Hi...
First off, I REALLY want Phoenix Wright to be in this game, I truly do.
Second, you may have seen me talk about Phoenix in Smash-tuber channels on YouTube and I can literally talk about wanting him in Smash ALL DAY.
But what I'm here to do is to provide some "legitimate" reasons as to why he should could be in Smash. (They're not really reasons but points to think about.)
1. Phoenix Wright has a history with Nintendo (obviously) and his trilogy was recently ported to the Nintendo Switch and AA7 I believe is currently being made for the Switch. Started from the GBA in Japan now to the Switch (and many other consoles) as a trilogy without a Spanish translation (I'm not Hispanic but I did notice this joke in the AA fandom lol).
2. Surprised not many or any people mentioned this but Phoenix Wright recently had an anime with two seasons, both dubbed and subbed btw. The anime was about the original trilogy and had some additional content added to it such as more backstory as to why Edgeworth moved away or a new case made just for the anime in Season 2 and much more. Not sure if it has an influence in regards to Smash but I'd say Phoenix became more popular because of the anime. I'm also pretty sure it did well but I can't prove that... (It's a great watch, still haven't finished Season 2 though...)
3. Other than Dante (which I'm pretty sure he was deconfirmed but I don't know exactly if its true or not) or Leon from RE, Phoenix Wright would be perfect as Capcom's rep as DLC. Wright wasn't in Marvel vs Capcom Infinite (thank god) so "maybe" Capcom saved him for Smash. (Bit of a stretch but hey whatever works.) If he does make it in (which hopefully he does) that would make Capcom with 4 reps... so? (Sorry, I don't know what to say about the "so" part lol.)
4. No Spirit btw (odd to think that Sakurai knows of AA's existence but didn't put a Spirit of Phoenix in the game...) His DLC Spirit Board would be so cool. Such as a Maya, Edgeworth, Pearl, Apollo and Athena Primaries while having Gumshoe, Godot or Mia as Secondaries. (Just some ideas for Spirits, not saying I want it to be like this lol.) *I say lol a lot...*
5. One of AA's genres being Visual Novel isn't represented in Smash or at least I can't think of a character in Smash that's affiliated with VNs.
6. AA MUSIC would absolutely be amazing! Pursuit Theme Remixes galore!
7. The moveset potential Phoenix has, Sakurai could take inspiration from Ultimate Marvel vs Capcom 3 and implement that into Smash, well since the fighting styles of the two games are completely different Sakurai could do that or make an entire new moveset from scratch while staying loyal to the series. I can imagine making Phoenix's signature "OBJECTION!" his Neutral B or as a counter for his Down B. But the only problem I see is what would his Up B be... I'd also like to see the Magatama be part of his moveset, probably for his Side B. He'd be unlocking the truth within the fighters. That's great.
8. As for the Stage, the Courtroom seems to be the logical solution. Maybe other locations would suffice such as the Kingdom of Khura'in and many others.
9. And finally, his character/skin alts, his main alt would be the suit in the first AA and his second could be the suit in Dual Destinies and forward. His third could be him in college with the pink sweater or as the pianist during Apollo Justice. And the rest of the alts could be color based like Maya's or Edgeworth's colors, etc.
So yeah, hope you consider the points I have thought of and let us enjoy speculating that the blue lawyer would one day (hopefully) make it into Smash.
Feel free to reply back if you agree or disagree on my points, I would love to hear them and I'll reply as best or as fast as I can. Sorry, this post is so long lol.
Hope y'all have a nice day! Take care now.