PDL, why do you defend Brock so much anyway? Of all the years I've known you, I don't ever remember you talking about Brock that much until the last 6 months or so. Why is it you agree that Misty became stale in Johto, yet you can't see the same thing happened to Brock since AG?
I've been defending Brock alot lately because people have been bashing him alot lately. It could be just be me playing the role of devil's advocate. To be honest, I've noticed that the writers are trying to get him more involved in the plot, yet people still complain that he's still as dull as drying paint.
What people don't seem to understand is that not every character needs to be doing everything all the time. The show's already filled with several separate storylines that occasionally intermingle with one another:
1. Ash's story of trying to acheive the title of Pokémon Master, which includes his involvements with gym battles and recently, his rivialry with a character who represents his complete anti-thesis. There's also a plot about Ash's destiny being far greater then just being a Pokémon Master. (His connection to Ho-oh and Aura to start...)
2. The female co-star's story of acheiving their dreams of winning the Grand Festival. This includes a greater involvement with side characters/rivialries that aren't as "harsh" as Ash's.
3. Plus the protagonist's involvement with evil teams or antagonistisc forces that use Pokémon for their own gain. (either comic ones like Team Rocket or truely serious threats like Team Galactic and Hunter J)
The writers already have enough trouble juggling all these plots, adding a third major plot would just throw the current balance. Plus it's perfectly fine to have a dream that doesn't involve being competitive. I'm not normally a competitive person by nature, I really relate to Brock alot because if I were living with Pokémon, I would probably be doing the exact same thing Brock is doing right now (Or be like James, who treat his Pokémon like his BFFs). The anime shows that there are numerous ways to interact with Pokémon, none of them are really wrong (Except if you outright abuse them or merely use them solely for their powers for your own personal gain without regard to the Pokémon's well-being).
If he ever did get replaced by someone new, I actually wouldn't be the one who would decry said character and instantly bash him/her like most members here. However, I get the strong feeling that this new character would end up filling the exact same roles that Brock is doing now. Which would ultimately not solve the problems the character was supposed to fix in the first place.
Also, I don't exactly agree that characters can go stale and must be replaced. I'm actually one of the few people who liked Misty throughout her entire run. There just wasn't a point in the series where I actually hated the character.
It isn't that Misty herself became stale, but rather the entire feeling of the show changed. It changed from an anime that was largely story-driven to one that specifically marketed the Pokémon franchise. Whatever is done in the games, wheither it's battling a certain trainer, contests, promoting a spin-off game like Snap or Ranger or even promoting a single Pokémon like Lucario for Smash Bros Brawl. There's going to be some kind of reference to that thing in the anime. The way the anime used to run was entirely different. They axed certain NPCs (like Gary's sister) added places that don't exist in any of the games (The orange islands being the most notable) or completely skip certain game plot points.
Unfortunately Misty could no longer fit in the equation. She doesn't promote anything or do anything useful, she would just be with Ash for the sake of just being there. Her goal would be exactly the same thing Ash is doing but totally limited because she isn't competing for badges nor is she catching new Pokémon all the time (As she usually limits herself to catching water Pokémon, which would all have the same abilities of manipulating water).
Brock however has managed to ease into a role that promotes Pokémon while staying true to his character. He promotes raising Pokémon, which can be easily done with any Pokémon. This can be easily done in the games through EV training or leveling up a particular Pokémon. He also makes his role distinct by not really competing in anything. Just rasing what a special Pokémon to be the very best that Pokémon can be. You don't need to be constantly getting trinkets to show that you're contributing.
Also, I don't see things from just the fan's perspectives, but rather from the perspectives of the producers of the cartoon and whoever else is in charge of creating the franchise.
I also find it extremely silly to constantly balk about a character who doesn't appear to do anything. It's the characters that outright irk me that tend to really tick me off. Paul for instance. He's a great concept for a character, but I really dislike people like Paul in real life so I don't actually care too much for the character. Off course it is the writers intent to make Paul an example of a character you're not supposed to like.
tl;dr version: Don't try to fix what isn't actually broken, Brock reminds me of me the most and Misty's terrible at promoting anything game-related.