its gotta be hl3 like cmon, HEV suit, XenGorilla!??? valve i hope for the best

It literally says that the character you play as wears an HEV suit, in the leak. Not to mention that there is veichle simulation and some of the content is even labeled as "Xen", like Xen Gorillas. It absolutely is a Half-Life game, without a fucking doubt.

cry about it

It's not related to Half-Life at all, it's probably an standalone project like Prospero or Counter-Strike. Get over it, they will never close the story without a cliffhanger until they find some new 'rEvOlUtIoNaRy' tech they can play with. They make only not what the fans want, but what video game industry wants (they want mostly more realistic stuff). Please stop considering it a sequel to Episode 2, Im bored seing those dumb threads, where every new Valve game is a Half-Life game, Again: IT IS NOT.