I remember rumors that Gear3 might be coming to PS3 but nothing ever happened, nothing was ever announced.
EDIT:
Can't find the rumor but i've found links acknowledging that there were rumors at the time.
https://n4g.com/news/277981/gears-of-war-3-is-not-coming-to-the-ps3#c-2061653
https://www.reddit.com/r/gaming/comments/i020p/confirmed_gears_of_war_3_has_zero_chance_of/
https://www.thegamereviews.com/article-1081-Rumor-Killers-Gears-3-on-PS3-Heavy-Rain-in-June-Mass-Effect-DLC-Coming-Soon.html
https://www.product-reviews.net/gears-of-war-3-not-coming-to-ps3-confirmed-at-e3-2010/
Last edited by Dgc1808 - on 19 May 20204 ≈ One