Forgotten decks due for a comeback?

[Veritas]

I'd like to name a few decks in the CURRENT metagame

Jumpluff
Luxchomp
Donphan
Sablelock
Gyarados
Gengar Variants

When building a deck, people often consider these decks in matchup. However, there are some older decks that might be able to survive and even flourish. As a lazy deck builder, I haven't changed my skeleton of my deck for a year now and that deck is Promogon. I've played against my friend's Luxchomp a few times and managed to beat it with relative ease with alteration such as Staraptor FB Lv.X and broken time space speeds it up immensely. Another deck comes to mind and that is Gardy/Gallade, better known as Plox, which hasn't been obscenely popular but could still see some competitive play

What old decks do you think have potential with new (almost broken) T/S/S and techs?

 

[AmishEskimoNinja]

G/G can't really come back into the metagame since it retires in a month.

I love promogon. The new porygon Z and legend box will give it a much needed boost. Granted the new porygon and porygon Z suck considerably more than the old GE ones.

 

[Fossil Master]

I can see machamp being a force to be reckoned with since unown g wont be here to bother us