Actually expanding on what I mentioned regarding visual changes, since I get the feeling that part is the most vague.

-idk if they care about the first shot before the title card. They could add more teams but there's also no space without it being way too cramped

-The Team Persona shot seems made for editing given that it's just their character renders on a plain background.

-The Beyblade footage is Pendragon VS Persona as a memento to the final battles of season one. They could keep this, but I suppose this isn't super set in stone.

-The shot of the teams has plenty space for addition, not much to go over.

-Obviously as I already pointed out we need Knight Mail.

-All of the isolated character shots might be subject to change based on plot relevance.

-As for the snapshots in question, we have 5, and only 1 of them is a new blader when we know more are on the way.

-I'm certain that the shot with the globe will be removed for a shot with Tenka launching. Mostly because the solo scene with Tenka that transitions into a battle only exists because she's the main rival for Team Persona rn. New antagonists come and go, but Tenka can still be incorporated given that she's most definitely joining Team Persona.

-The glowing dragon scene is only a brief cut in before transitioning to its own unique scene almost immediately, so that sequence could stay after the rival shot until whatever avatar it's for is revealed (I have a sneaking suspicion it isn't an "avatar" actually).

-There's nothing that screams replaceable about the ending shot, but the Burst staff are working on X, and for version differences in Burst they commonly added new ending shots.

あらたなる境界 立ち塞がる未来
掴み取りたい世界 (Burn it up! Burn it up!)
奴らの視線に 君は少しひるんだ
跳ね返そうぜ眼光 (Burn it up! Burn it up!)

不可能に見えた fight to the edge (Shout it out!)
君は乗り超え迎える (No more doubt!)
目に見えない最大の敵は Deep in your heart

君は走る 迷いも切り裂いて 放つ閃光 流星のように
君を見つめ 希望見つけ出す
僕を救う Getting closer to the top
To be with you