While we all welcomed last week’s rumor that Sprint’s LTE speeds were headed to a number of prepaid phones on Boost and Virgin Mobile, we couldn’t help but be cautious and take the info with a pinch of salt – after all, it was just unconfirmed speculation.

Now however, even if we’ve still not heard from Sprint, Boost or Virgin, we’ve picked up another rumor on the subject, coming from the ever reliable and relentless @evleaks Twitter account. According to the insiders that have exclusively revealed so many phones these past few months, the first Sprint prepaid LTE handsets will launch in Q1 2013.

Evleaks even claims to have the identities of the first three LTE-enabled prepaid devices on Boost and Virgin – the ZTE Aurora, HTC Kingdom 2 and Samsung Galaxy Victory.

Virgin’s Victory is the name to ring the most bells from the trio, being more or less an open book for us. Sprint has already made the 4-incher available with LTE on postpaid accounts starting a couple of months ago.

Despite its pompous name, this is not exactly a top-tier device, featuring a 4-inch 800 x 480 pix res screen, a dual-core 1.2 GHz CPU,  1 GB of RAM, 4 GB of internal storage, a 5 MP rear-facing camera and Android 4.0 ICS among others. The Victory starts at $49.99 with Sprint’s two-year contracts, but on Virgin with pay-as-you-go we’re guessing it could cost as much as $250.

As for the two LTE phones set to launch on Boost next year, these are much more mysterious. As a matter of fact, this is the first time we’re hearing about the ZTE Aurora, so we’d rather not speculate anything about it.

The HTC Kingdom 2 is also a phone that doesn’t ring any bells with that exact name, though we remember a first-gen HTC Kingdom pretty well. That’s known as the EVO Design 4G over on Boost, where it costs $199.99 with Android 4.0, a single-core 1.2 GHz processor, a 4-inch S-LCD display with 960 x 540 pix res, 768 MB of RAM, 4 GB of on-board storage, and a 5 MP rear-facing camera.

We don’t know exactly what upgrades HTC and Boost are planning, but we can surely hope to see a dual-core CPU fitted under the Kingdom 2’s hood, as well as 1 GB of RAM.

Do any of these phones sound like something to be excited for? Were you hoping for something more spectacular spec-wise? How about prices – will LTE make Virgin and Boost raise the bar?