Update: Kotaku managed to get a response from Epic. Effectively the PS3 build was for testing being done for the Unreal Engine 3, using both Gears of War and Unreal Tournament (hence the Unreal logo on the PS3 dashboard for the game). It was not part of any wider plans to bring the game to PS3.

I?m seeing some comments about the ?is this actually on a PS3"? because nothing shown points to it.

I didn?t put in booting from the xmb because it adds nothing really
So here?s that exact thing I left outhttps://t.co/jO7AFtfqUh
? PixelButts (@PixelButts) May 19, 2020

PB = PB || {};
PB.gptStandAlone = PB.gptStandAlone || {};
PB.gptAutoRefresh = PB.gptAutoRefresh || {'gptAds':[], 'gptStandAlone':[]};
admiralCookie = readAdmiralCookie();
googletag.cmd.push(function() {
var standAloneSizeMapping = googletag.sizeMapping().addSize([0, 0], []).addSize([750, 0], [[300, 250]]).addSize([980, 0], [[300, 250]]).build(); PB.gptStandAlone['ros_300x250_p_slot4_1589983388'] = googletag.defineSlot('/4403/cr/playstationlifestyle/ros', [[300, 250]], 'ros_300x250_p_slot4_1589983388')
.defineSizeMapping(standAloneSizeMapping) .addService(googletag.pubads())
.setTargeting('pos', 'P').setTargeting('content_detail', '0').setTargeting('kw', 'in-article').setTargeting('coppa', '0').setTargeting('site', 'playstationlifestyle');
googletag.enableServices();
googletag.display('ros_300x250_p_slot4_1589983388');
...