I think , Ash might get himself a Lucario .
After all, Considering Ash has a Domain ability as a Aura User , Lucario always seem to a pokemon meant to be capture by Ash.
I mean , The Opening could show Charizard or Mewtwo's Megevolution accept Lucario's .
The way The Opening Showcase Lucario Megevolution , I think Mega Lucario might has a important role to play .
Yes he does !!!
Plus , doesn't other cast got way more spotlight then Ash already since AG series ?
The Whole BW Series was focus on other character accept Ash.
There even was joke about BW Series being Iris show starting Trip .
I think Ash step back long enough for other character .
May be it time he get full attention like any other main character of Kids Anime gets.
I don't see Ash getting a Lucario at all, but i do see him getting a Skiddo and Litleo since these two pokemon can fill the role of Ash having a fire type and a Grass type on the Kalos team.
There is noway that this series will be anything like the AG/DP series, but i do believe the XY series will be a mix of all the other Pokemon sagas since the Kalos region has a lot of connections to the other past regions.
You know , I don't think there any point in keeping those Gym-leader in silhouette because everybody with the game Or Internet already knows their identity .
I rather prefer if the opening show Rivals in Silhouette .
May be it could happen in the 2nd opening .
Imagine , Korrina grandfather reveal to Ash that there are 6 or 7 ''Challenger'' who can perform Megevolution. Then the next opening show those 6 Or 7 trainer/rival in Silhouette
It would more interesting then showing Gym-leader in Silhouette .
Because Unlike Gym-leader , Rival are Anime exclusive character .
So , Nobody will have single idea about them until they make their appearance one by one .
That will make the show more interesting .
There are actually people who don't play the games and don't look around for spoilers who watch the anime so that's not true. There are people who are unaware of who the new gym leaders are and won't find out until they see them in the anime.
And I don't see how a change in the opening would make a whole anime be more interesting tbh.