I don't think the arms race will stop, as long as they stay as they are I think 3.02 situations will continue to repeat like it has. Especially with a lot of people calling Fox and Falco in the top 5 for 3.5 right now. People can get sick of this fast, it's one of my biggest issues with Melee is that I feel like it is a 2 character game in my area.
I'd like to see them just be ok for once rather than must be top 10 like it has been because they are afraid of changing anything with the spacies.
That kind of balance bias needs to change.
If melee feels like a two character game in your area, it's probably because of two reasons. A) Noone is willing to pick up marth or any other character that's good against spacies, thus playing to the meta, or B) (And this one is more likely) Man, spacies are just fun. Coming from a Marth main.
When it comes to an arms race though, I do think other characters need to be better armed, but that doesn't mean that there aren't any. I would say that Lucario and Snake both have advanced enough and deep enough tech to let them both fight spacies equally and be a goatload of fun to play.
Also, I will point out that Ike whooped all of M2Ks characters including his fox.
https://www.youtube.com/watch?v=OXux894VOPM
I really feel like it's what @
MegaMissingno
said. Some characters are close to completed with their kits, and I do think they can stand up to spacies when played right. C Falcon, Wario, Squirtle, heck even G&W if someone wanted to learn them.
One has to realize that no matter how good a character is, the most they can get with 1 hit is a stock. This means that the bar for any one (well designed) characters kit is
1) Must be able o 0-death a wide majority of cast, even if it is very very very technically difficult
2) Opponent must be able to escape combo's with proper defensive counterplay (SDI, Combo DI ect.)
So long as everyone has the tools to do these two things, I think the game will be in a good spot. On top of this, you can add in
3) Character must have enough technical depth to be engaging and interesting to both play and watch.
And I think lots of characters fit this build, even if no one is playing them to prove it. Squirt has silly disgusting awesome tech that can keep the little bugger on you for days and 3.5 just turned side b into a move will a killing sweetspot. A+
G&W has an awesome Up B OOS option that combos into silly pillaring with key, plus some of the hardest throws to properly DI due to animation. Super fun.
And this goes directly into the other thing that gets repeated lots in regards to PM.
Fox and falco have years of melee tech behind them, and we know how they work and how to manipulate their attacks perfectly from years and years of melee. It only makes sense that people coming from that game are most comfortable on characters that they already play. If PM lucario came out at the same time as Melee did, I'm sure Lucarios tech would also be well advanced past what all the other PM characters are.
I feel like we are headed in a good direction tbh.
(Just fix Zero suits throws plz.
)