I'm going to go out on a limb here and suggest something that's personally motivated by a gripe that I have.
For years I've been an enthusiast for a select few abilities, but each time I come back to the RP I end up feeling like that's a massive setback instead of a reward.
For a solid three years now I've been hearing it constantly - 'get a better bio'. Thing is, I don't want a 'better' bio, I want my bio. I made this bio for a reason - and that reason is that it's mine. My stuff. My style. My vision.
To me, that's what matters most, but I don't want to suffer for it. However, pragmatism demands that if there's a ceiling, I bail out and start working towards a bio that won't make me suffer...
And what does that entail? Farming kumi for a Six Paths bio or CoT?
I care for neither, but it would be silly for me not to when they offer the raw stats and power ceiling that paves the way back to the top of meta competitive.
And before you say customs...been there. Done that. It doesn't work. They get changed, limitations are set, you're arbitrarily barred from exploring avenues that are supported by the manga and should be open to you, or maybe you even get trolled by the manga itself, and when all is said and done you'll get a pat on the back and told that 'This is as far as it goes'
It's a shit feeling, and I'm tired of it. If this is some new era for the RP, and new era for the NW, then I don't see why it isn't facilitating a new era so that no ability, no matter how low a tier or canonically underdeveloped it is, is left obsolete in the face of tier 5.
Of course, this shouldn't come free. And it shouldn't come on a silver platter. But, in the right hands, small changes can lead to much, much bigger things, and I think that should be better supported.
There seems to be this massive Mod list of 'shit that's not allowed' - for whatever reason - but I propose that that list is taken, and introduced as acquirable traits or perks that can be worked towards in the RP - just as we can currently work towards tier 5 bios themselves.
Off the top of my head, examples would be things like;
Animals being able to consume pills
Additional/stronger custom breeds for Inuzuka/Aburamae
Liquid/gaseous steel
Blast that can work beyond contact, either through custom mediums or in the way Drackos had it set up before.
+30 to an affinity
And whatever, else, I'm sure the list could be extensive and allot for a variety of pre-set, and even user-submitted options.
But the end goal would be that, with the right set up, the right approach, a steady work towards and the right decisions, any bio can become a 'tier 5' bio.
And your bio, can be your vision.
Not a pre-wrapped package that you punch out of a vending machine.
WW fights could be good for this, thematically and functionally.