Super Smash Bros. for Nintendo 3DS and Wii U

Super Smash Bros. for Nintendo 3DS and Wii U (大乱闘スマッシュブラザーズ for Nintendo 3DS / Wii U lit: Great Melee Smash Bros. for Nintendo 3DS/Wii U), commonly abbreviated as Super Smash Bros. 4, SSB4, or Smash 4, is the fourth and upcoming installment of the Super Smash Bros. series. Super Smash Bros for Nintendo 3DS will be the very first Super Smash Bros. game on a handheld system. It will be released for the Wii U in Winter 2014 and the Nintendo 3DS in Summer 2014.

Marth
Marth was confirmed to return for Super Smash Bros. 4 on November 7th, 2013. Marth's appearance differs in this game than in previous Smash games as he now appears in the redesign he received in Fire Emblem: Shadow Dragon and Fire Emblem: Shin Monshō no Nazo ~Hikari to Kage no Eiyū~

Lyndis
Lyndis was confirmed on April 8th, 2014 to return in Super Smash Bros as an Assist Trophy once more. Her assist works exactly the same as it did in Super Smash Bros. Brawl.

3DS Version
Arena Ferox stage will be featured in the 3DS version. The Stage's floor has the exact same pattern as its namesake map and the large crowd seen in the background during a battle also appear on the map. The Stage transition into four different arenas, and a Final Destination version is available. One formation features 4 elevated platforms: 3 of which are suspended by chains and 1 supported by a single beam from the floor. Like Castle Siege, Arena is a Dynamic style stage which will replace the elevated platforms with 4 different platforms supported by two statues.
 * Arena Ferox

Trophies

 * Tiki (Fire Emblem: Awakening version)