Hey there, become smart please use your gray matter.
Facts:
Yet leaked hardware is solid evidence of an 4.7" iDevice with surely will be named iPhone 6 (unless Apple change the predictable moniker to something like +new iPhone or thinner iPhone etc).
Yet leaked material on the 5.5" iDevice lacks the back casing, so we didn't saw if this device has radio antennae Windows as the iPhone5/5s. so no evidence If such iDevice it's actually an phone, it certainly could be just an iPod touch.
I doubt the 6" iDevice if it's a phone to be named iPhone air, it's anachronism since the 4.7" device is the lighter one, so it's more probable it will receive another moniker as iPhone 6 Pro, or iPhone 6 XL, iPhone unlimited (this is one I like).
Other market facts :
Despite the media boom, Phablets still account for 5-7% of each new android flag ship model sold, I have an Galaxy Note 2 which I love, but I didn't have desire to update to the note 3, instead I bought the HTC ONE M8, which I consider it's the best smartphone on earth until the iPhone 6 (either size) it's released.
Furthermore, 6" gaming tablets as the Sony PS Vita outsells Phablets by about 5:1 or more, gaming on iDevice is an market not well exploded by Apple since the iTouch 6 it's too small an the iPad mini still too heavy for gaming, so kids favor things like the PS Vita which has an niche legacy of the PSP and the Nintendo DS.
So, until there is some leak that supports the 5.5" iDevice it's an iPhone and not an iTouch, I believe the only iPhone next to launch its the 4.7" version, followed later (as usually) by its iTouch counterpart with an cheaper but bigger screen and enough battery to satisfy the hardcore gamers all around (and on time for Xmas).