well you have to wait for a future where some how bi pedal robots are the best possible battlefield tool, have AI and a direct neurally linked pilot, and then they will give you one to chase after your mech.
so like next year some time.
Bipedal mechs have some advantages that may make them considered for a space navy. Mainly, they're not as limited on terrain as nearly any other vehicle type (take a good look at how humanity spread before the discovery of riding horses for a good example of the terrain range of bipedal motion), and it's harder to damage their method of locomotion using certain real-world common methods (people can, and have, walked unharmed through minefields without knowing the mines are there). If you need to save space by choosing a single vehicle with an easily-adapted armament without having
any clue what kind of terrain it may have to traverse, you really can't go wrong with bipedal motion.
Which doesn't excuse using the damn things in
cities, where you should have easy access either to tanks or the materials to make tanks.