Blue's News has new details on Gears of War 5 for the PC. Hit this link for all the details. Here's a quote to get you started.
Accordingly, Gears Tactics will be tailored to PC play, to better serve the traditional mechanics of the genre. Unlike the third-person real-time adrenaline rush of the 'Gears Prime' entires, tactical games require a wider view of the area of engagement, specific movement paths and placement of units, ultimately rewarding players for patience and planning rather than bravado – all elements improved by the precision offered by mouse-and-keyboard controls.