I think this image contains stopping power (bullet), extreme conditioning (boot with wing on it), overkill (2 guns crossed), sadly revive (syringe) and I don't know about the last one.
see the one with the boot with wings i think it may not be extreme conditioning, just simply because its a teaser and maybe they want to show us something new, so i was just thinking positive maybe its a newer perk like higher jumping or faster sprinting, not extreme conditioning, which by the way differs from faster sprinting, because it only allows you to have higher stamina hence letting you sprint longer, not faster. Just wanting to show optimism!