This is a what if question, so this isn't actually happening.
So lets say that Nintendo decided to make the levels up to 100, and at level 100, you would unlock the ability to buy a special item that costs 999999 cash (maxed out wallet). This special item is a set creator, so you can create your own weapon sets, consisting a Main Weapon, Sub Weapon, and a Special Weapon. Not only that, but you can have a Extra Weapon, that you can use using the L button. The Extra Weapon allows you to bring a extra Main, Sub, or Special Weapon (so controls would be: have the L button to swap between Mains/Special (but the extra Special would have separate charges), or using the L button to directly throw the extra Sub), allowing you to swap between two of your favourite Mains in battle for different situations, dual-throw Subs, and mixing two Specials together. OR you can pick 3 special pieces of equipment/gear with hand picked abilities, with the addition of a new ability on the shirt being an extra Ink Tank.
So this is it, which would you prefer, A hand picked weapon set with an extra, or 3 pieces of equipment/gear with hand picked abilities? You decide, also if you would prefer the extra weapon changed (controls or works) or the extra Ink Tank not avaliable at all (Extra Weapon also could make "not avaliable") due to balancing reasons, put that in your answer to this very-long-question-that-only-2-or-3-people-would-answer.