I am certain there will be an iteration on the 3DS, I can't see Capcom passing on the chance (and sales potential) of a MH in 3D.
That said, specifically in this quote it could be he meant 3DS, but could also be he meant PS3. Now that they got lots of money from the PSP version, they may decide they can now afford to risk the expense of a PS3 version.
Currently Playing: Shin Megami Tensei: Devil Survivor Overclocked, Professor Layton and the Curious Village
Anticipating: Xenoblade, The Last Story, Mario Kart 7, Rayman Origins, Zelda SS, Crush3D, Tales of the Abyss 3DS, MGS:Snake Eater 3DS, RE:Revelations, Time Travellers, Professor Layton vs. Ace Attorney, Luigi's Mansion 2, MH TriG, DQ Monsters, Heroes of Ruin