wow idk about that

if that happen , hope he get good send off
but right now i cant see it
since ash have pikachu and pikachu are pokemon mascot so
sadly he need to stay
As noted, that's a concern, but I'd argue the anime isn't really the best venue to display Pikachu in anyway, because when Pikachu is in the anime, either he has to get held back by Ash because he's too strong to make many new battles feel like a challenge, or he gets nerfed to make them challenging. The one thing he's still used for is fighting off Team Rocket, but in the form it takes, he's less a hero and more a MacGuffin. Pikachu being in the anime drags him through the mud because it forces bad writing. On the other hand, when you make a spin-off title with Pikachu as an abstract concept; instead of specifically
that Pikachu, there's no burden of past development to create plotholes or a need to hold back; Pikachu there can still come off as the star of the Pokemon series, whereas in the anime, he's just an object grandfathered in.
Did it? I thought they were still having Ash drop back to brainless newbie at the start of each region.
While I haven't seen much of the post-Johto anime, my understanding is that Ash seeming
completely mind-wiped didn't happen until the
Best Wishes series. Hence, what I think Blood Red was alluding to is that now, the writers have no idea how to make the show compelling again without being allowed to think outside the box, and are more or less shooting in the dark.
From what I have gathered, the writers of
Best Wishes were trying to take the show in a bold new direction that hopefully brought back some of the luster the old episodes had while catering to new sensibilities; making Ash feel fresh, making Team Rocket feel more like genuine villains instead of annoyances, and making the companions gym leaders instead of avatars. The problem is that within this series' oppressive episodic, anti-continuity mindset, writers can pull that sort of overhaul off without any regard to how things developed to that point, and that they did made the old fans mad. I have no idea why the old fans were even still there, but that's besides the point; the point is that there were always tensions between the show's original watchers and the influx of plebes recruited each new generation; the former feeling like they were screwed over in favor of the latter, and doing something that drastic just ignited them.
So come XY; lo and behold, they try something else; they move Team Rocket back to being inept comic relief, presumably as a bone to the old fans (assuming they actually liked Team Rocket as comic relief), but again with no explanation why they just changed course all at once, and apparently are now making the battles more exciting and Ash look tougher, which, as alluded to upthread, is likely just to piss people off extra hard when they betray anticipations.
The TLDR is that the writers have realized they need to do something to make this series good, but they're surrounded on all sides by things antithetical to good. They've been burdened on one side by game plots that center around the bland goal of being the best at something that doesn't really exist, and on the other the stigma against actually accomplishing this because they think Ash needs to stay in, on one side the need to add some good-vs-evil element to provide genuine tension, and on the other inheriting lame villains they can't really alter without pissing off someone, on one side the moral pressure to teach vague lessons about friendship, and on the other the call to betray those lessons when Ash moves on. At this point, something or other has to give, and it's not going to be possible to leave everyone happy. The writers' challenge is practically just to make something that doesn't piss
everyone off, and honestly, maybe it would just be better if they fail and this zombie is finally taken off life-support.