Will Pokémon X & Y Come to Xbox 360? Never.

Never. Pokémon is a Nintendo-exclusive franchise (Game Freak / Creatures / Nintendo / The Pokémon Company). Mainline games release only on Nintendo handhelds/consoles.

Platform History

• Pokémon X & Y (2013) — Nintendo 3DS exclusive.
• All Mainline RPGs: Game Boy → DS → 3DS → Switch.
• Spin-offs: Some mobile (Pokémon GO, Masters EX, Unite), but never Xbox/PlayStation/PC.

Playing on Non-Nintendo Hardware

• Citra (3DS Emulator): Runs X/Y at 2x–4x resolution, widescreen, texture packs on PC/Android/Steam Deck. Legal if you dump your own cart/keys.
• Yuzu / Ryujinx (Switch Emulator): For Sword/Shield, Scarlet/Violet, Legends: Arceus.
• Official Mobile: Pokémon GO, TCG Live, Sleep, Cafe ReMix, Unite (Switch/Mobile).

If you want Pokémon on Xbox, you're limited to cloud streaming from a PC running an emulator (Parsec, Sunshine) — not native.