'Halo: The Master Chief Collection' will be released on PC "when it's ready".
The franchise's community director Brian Jarrard has opened up on the planned launch schedule for the PC version of the collection, with Xbox One gamers already getting all four games.
However, responding to a fan on Twitter, he wrote: "We've never said anything about all the games arriving on PC this year.
"We've been consistently saying they're ready when they're ready. We certainly hope Reach arrives by end of year but much depends on flighting outcomes - when it's ready, it'll launch."
Eearlier this year, 343 Industries warned gamers that playing the leaked version of 'Halo Reach PC beta' will get them banned.
The firm's Community Support & Engagement Coordinator Tyler "Postums" Davis took to Twitter to caution those who have playing "illegally distributed" version could face being barred from playing all of their titles in the future.
He wrote: "It has come to our attention that the Halo Insider flight has been illegally distributed online. If you download or play this illegal copy, we have the right to ban all associated accounts and remove you from all current or future 343 programs."
The 'Master Chief Collection' will be released in chronological order for the PC, as Microsoft will look to launch 'Halo 2', 'Halo 3', 'Halo 3: ODST' and 'Halo 4' over time.