It won't happen and here is why.... If matchmaking were to be put into raids, it would stop community solos and challengers, who do challenges in the raids in their spare time that they come up with (Datto, Tfue etc). The only way to counter this would be to make it optional, which would be pointless as the best raiders and most raiders will still use LFG for fear of matchmaking with scrubs... this defeats the system being put into raids as it would be full of morons, children and people who don't even speak your language. Matchmaking for endgame content will never happen, this was announced waaaaaay before the game existed and if you can't be bothered to use an LFG site then why are you even trying to raid in the first place. Raiding requires (unless you have OP skills like Datto) teamwork, knowledge of mechanics and commitment... commitment as in, the commitment to stay in the raid and keep trying even if you wipe. Randoms quit quickly after dying during boss fights, most of them won't even know the mechanics as they aren't using LFG like normal raiders and if you wipe once, expect to see people quit and then your entire matchmade team follow suite I mean.... who wants to wait 5 - 10 minutes for a random to join who might be even worse than the guy who just left? It isn't -blam!-ing logical to add any form of matchmaking to endgame content. The LFG sites are safe, in the clear with Bungie themselves and provide you with a way to not only matchmake with certain people of certain ages, you can also hunt down specific classes and even look up peoples stats, gear etc before you raid with them. Raiding needs commitment so if you can't be bothered with LFG, you obviously cannot be bothered with raiding itself (LFG is 5% of the Raiding experience).