Well... You know... The Frontline Update... I mean - it may just come as a reskin in frontlline - but I don't think they would do that with this gun.

We can only hope, but let's face it, implementing a new weapon is simply a loss of profit for Valve. Adding new skins and taunts is highly lucrative, while a new weapon means stat changes, meaning more work hours dedicated to fixing additional bugs and imbalances(which they already have issues with on many other weapons). A reskin is just download from the workshop. A new weapon is work and profit loss.