According to a SyFy Portal unnamed “trusted source” at Paramount the rumor spreading like a wildfire about a STAR TREK feature film with Captains Archer, Kirk and Picard together is nothing more than mere speculation at best or malicious rumor at worst.
However, even SyFy Portal admits that no offical denial or confirmation has come directly from a Paramount or Viacom spokesperson.
I tend to agree with the SyFy Portal on this one. With their current demanding and conflicting schedules, getting Scott Bakula, Bill Shatner and Patrick Stewart together all at the same time for a project such as this would be a monumental undertaking, and while not impossible, it’s highly improbable.
Source: SyFy Portal