I hope , XY series won't be like AG Where Serena goal & Rival will take the major spotlight while Ash will barely get 2 rival at the League .
Hopefully , Ash will have this type of rival -
-A Superior Rival : Basically Someone Older & More experience !!! Like The Mysterious Man with a Mega Blaziken !
I don't think he's from Team Flare considering that his Mega Blaziken saved Ash .
I hope for someone like Kai Toshiki (Cardfight Vanguard ).
He Should be strong , cold , Calm & a Mentor-like to Ash .
However , Ash doesn't like his cold way of treating people so he will want to beat him the most among all his XY rival .
-A Main Rival : Basically A Boy around Ash's age who nether stronger Or Weaker then Ash .
Like Blue (Pokespe) ,Ren (Shamen King) , Gray (Fairy tail) .
He & Ash often fight but he will not be a gag rival like Berry .
His relationship with Ash will be like this-
However they will show care for each other & work as a team when the time come's !
-A serious Female rival : Girls should have a chance instate of being a gag rival like Bianca !!!
I would prefer another tsundere version of Giselle !
Only difference , She doesn't change her view even after her first defect against Ash.
It will took a lot more development & plot before she change her view about Perfection.
I liked Giselle , She's one of the Original character I wanted to reappear .
I Never felt the same competition I felt in her episode on any other episode .