I made a prediction on what structure we will see after Master of Pendulum.

[Kira Yoshikage]

It would be a Photon/Galaxy structure using left out anime cards and Galaxy Stealth Dragon. It would probably be called "Photon's Light Structure Deck" if you ask me.
Full Armor Photon Dragona and Kite would be on the box cover, and the playmat would have Galaxy-Eyes Xyzs, Galaxy Stealth Dragon, Starliege Paladynamo and Starliege Galaxion on it with a Space-themed background.
Here is the card list and the anime cards stats/effects!
22 monsters.
x1 Galaxy-Eyes Photon Dragon
x2 Galaxy Knight
x2 Galaxy Wizard
x2 Photon Caesar
x2 Photon Lizard
x1 Galaxy Soldier
x1 Galaxy Mirror Sage
x1 Galaxy Tyranno
x1 Photon Slasher
x1 Photon Circle
x1 Photon Chargeman
x1 Photon Thrasher
x1 Photon Crusher
x1 Photon Spectre(Anime only right now)
x1 Photon Delta Wing(Anime only right now)
x1 Photon Satellite
x1 Kuriphoton
x1 Honest
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14 Spells
x1 Galaxy Zero
x1 Galaxy Expedition
x1 Galaxy Storm
x1 Galaxy Rebirth(Anime)
x1 Miracle Galaxy(Anime)
x1 Photon World(Anime)
x1 Photon Lead
x1 Photon Trident
x1 Photon Trade(Anime)
x1 Photon Prevent(Anime)
x1 Photon Sublimation(Anime)
x1 Photon Hurricane(Anime)
x1 Accellight
x1 Raigeki
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4 Traps
x1 Photon Shock(Anime)
x1 Photon Escape(Anime)
x1 Battle Simulation(Anime)
x1 Bottomless Trap Hole
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x1 Galaxy-Eyes Full Armor Photon Dragon
x1 Neo Galaxy-Eyes Photon Dragon
x1 Galaxy-Eyes Prime Photon Dragon
x1 Photon Strike Bounzer
x1 Tiras, Keeper of Genesis
x1 Starliege Galaxion
x1 Starliege Paladynamo
x1 Galaxy Stealth Dragon(Manga)
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New cards possible IRL wordings.

Photon World: "Whenever a 'Photon' monster is summoned to the field; Inflict damage to your opponent equal to it's level X100. You can only use this effect of 'Photon World' once per turn.

Photon Trade(Normal Spell): "Discard 1 'Photon' monster from your hand; Draw 2 cards.

Photon Sublimation(Normal Spell): "Banish 2 'Photon' monsters from your graveyard; Draw 3 cards. You can only activate 1 'Photon Sublimation' per turn."

Photon Prevent(Equip Spell); "Activate only when your opponent activates a card that would inflict effect damage to your life points; You take no effect damage until the end of this turn."

Galaxy Rebirth(Equip Spell); "Target 1 'Galaxy' or 'Photon' monster in your graveyard; Special summon that target and equip it with this card. If that monster is on the field during your end phase: Destroy this card and the equipped monster and send them to the graveyard. If the equipped monster is used for a successful Xyz summon; Attach this card as material to that Xyz monster on the field."

Miracle Galaxy(Quickplay Spell); "Target 1 'Galaxy' or 'Photon' monster on the field that made an attack this turn; That monster can attack a second time this battle phase, and your opponent cannot activate cards or effects in response to that attack or this card's activation. But any battle damage inflicted by that monster is halved."

Photon Hurricane(Normal Spell); "Return any number of set cards your opponent controls to their hand up to the number of 'Photon' and 'Galaxy' monsters you control."

Photon Escape(Normal Trap); "If your opponent targets a face-up 'Photon' or 'Galaxy' monster for an attack; Inflict damage to your opponent equal to the attack target's current ATK, and if you do, banish the attacking monster."

Photon Escape(Normal Trap); "When your opponent declares a direct attack; Banish 1 'Photon' monster from your graveyard: Negate the attack and end the Battle Phase."

Photon Delta Wing(Effect Monster)
LIGHT, Machine, level-4, 1800 ATK and 900 DEF
"If you control another face-up 'Photon' monster while this card is face-up on the field; Your opponent cannot target 'Photon' monsters other than this card for an attack. You can only control 1 face-up 'Photon Delta Wing' on the field."

Photon Spectre(Effect Monster)
LIGHT, Spellcaster, level-1. 0 ATK and 0 DEF
"If you control a face-up 'Photon' or 'Galaxy' monster, you can discard this card from your hand; Add 1 'Photon' monster from your deck to your hand with equal to or less ATK. When an opponent's monster declares an attack, you can banish this card from your graveyard; Target 1 'Photon' or 'Galaxy' monster in your graveyard with 2000 or less ATK: Special summon that target from your graveyard in face-up defense position and if you do, that monster cannot be destroyed by battle or card effects for the rest of this turn, but it's effects are negated. You can only use 1 'Photon Spectre' effect per turn and only once that turn."

Galaxy Stealth Dragon(Xyz Monster)
DARK, Dragon, Rank-4, 2000 ATK and 1600 DEF.
"As long as this card has Xyz material; Face-up Dragon-type Xyz monsters you control cannot be targeted or destroyed by card effects. You can detach 1 Xyz material from this card; Target 1 Dragon-type monster in your graveyard with 3000 ATK that has a level; Special summon that target in face-up attack position and make it's level 8, but it's effects are negated, and it cannot declare an attack while it is face-up on the field. You can only use this effect of Galaxy Stealth Dragon once per turn."
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So, tell me what you think of this idea for a structure deck! Did you like it? Did you find it lackluster? Let me know in a comment below!
~Shadow

[Flip Flapper]

i hope it is true and i´ve been waiting for galaxy stealth dragon since the second i laid eyes on it, but you are forgetting some manga cards especially photon advancer (1000 atk and gets a 1000 for each advancer and weh nsummoned can summon an other advancer and with a certain light support card would be easy getting 3 of.... also inferno reckless summon) and photon jumper (basicly level 4 light battle fader) but most of all galaxy stealth dragon, it should be able to summon from hand to though and also have the ability to summon ocne that do not have 3000 atk, also it would be cool if they made a retrained variant of tachyon that is not a number for this imo but again GALAXY STEALTH DRAGON