Of course there's gonna be more to Link's development and metagame, but overall, I dont see him making any significant jumps anytime soon. It's not even Link. It's the game itself. Brawl is just too shalow of a fighting game. The best way I can describe it is through the comparison of melee and Chess. Melee is one of the fastest fighting games of all time. It focused on fast gameplay, combos, and mindgames. Now chess, is an extremely slow paced game. It focuses entirely on the mindgames. That's what the game is, one giant mindgame. Then you have brawl. It isnt fast paced, extremely lacking in combos, except for a few extremely broken exceptions >_>, and does focus heavily on the mindgames. So that's just the thing, for how basic of a fighting game it is, even if some great tactics with Link were discovered, it still comes down to the basics of Brawl. If you can out mindgame your oppoenent, you win. Even though Link sucks comparitively to the rest of the Brawl cast, as long as you have the patience and stamina, he can win any matchup. It's not any great development in his playstyle or metagame, it's your level of understanding of the character and the game he resides in.