I know I'm in the minority in this thread, but I have a thought.
No problem welcome anyways VA.
I know we all have this obsessive-compulsive NEED to have a full grass-fire-water core, and Sceptile does make a lot of sense, but rather than plug a gen 3 mon for Smash 4, maybe they should wait until Smash 5 to add a grass type again? By the time Smash 5 comes out, we'll assuredly have Pokemon Gen 7 (and probably 8 too). Then we could have a grass type AND continued new poke reps without having to cut another mon down the road.
Sakurai wouldn't choose not to promote Game Freak through playable pokemon fighters, including Greninja but he did anyways. He cut out Ivysaur & Squirtle that was a bundle with Charizard & adds Greninja to 'replace' squirtle's position, keep in mind that the water turtle made Smash history for the first time in Super Smash Bros., being a playable water pokemon. Greninja is living that history & carrying on the legend, no matter how you look at it for Greninja promoting X & Y, creating him from scratch before X & Y were even released. Ivysaur for the first time making a grass-type pokemon playable that's also a quadruped, why would Sakurai suddenly not include a grass type for this generation of Super Smash Bros. & wait for Super Smash Bros. 5 when Sakurai hasn't mentioned anything about a new SSB game in development? If this is the very last SSB game Sakurai will ever develop, I want the last installment of SSB to have a grass representation so that Pokemon's history didn't 'ditch' the trifecta last minute.
It just seems to me the Pokemon series is a relentless conveyor belt of new characters. We should be looking to the future for new reps. Not the past.
I agree 30% & disagree 70% with looking only towards the future & not look back on the past. Pokemon games within their 6 generations get at 3+ games for each generation while Super Smash Bros. is on it's 4th installment. If we were looking towards the future of Melee's playable pokemon cast it would of got more Generation 2 but only got Pichu. The future of Brawl's playable pokemon cast would of had Generation 3 R&S pokemon or Generation 2 but got Lucario from the mystery of Mew movie being Generation 4, & Kanto starters instead because of the remakes FR&LG, overshadowing both Generation 2 & 3 making once again Generation One the better idea. Generation One will forever be the most iconic & if we didn't look back on the past we wouldn't have Pikachu Charizard Mewtwo or Jigglypuff.
Even with the remakes, gen 3 is old news at this point, and Sceptile is no where near as popular as Charizard and Lucario (or Mewtwo).
Sceptile indeed isn't as popular as Charizard Lucario or Mewtwo, but Sceptile is a popular Grass-starter pokemon & unfortunately pouncing on Mega Evolution & the remakes it's made Sceptile & Swampert much more popular. Sceptile back then was Geneartion 3, but OR&AS is Generation 6 baby, this isn't old news & that's more reason to promote Sceptile.
I know it seems odd to buck Sceptile for hypothetical grass types which don't exist yet. Just some food for thought.
Thanks for your food of thought, it inspired me to eat Mexican cuisine.