Does anyone even care about the story? I think beyond the first day, most people I know who played didn't know/care about a single thing. All they've done since is loot grind over and over and over.
Additionally they promised a great PvP experience, and yet it's been really unbalanced and boring, here's hoping for more objective modes, and a better nod to their Halo roots. Who knows though people will probably hype it as the best sequel in the history of gaming in the lead up.
Edit: Here's hoping they find some way to bring in raid matchmaking for those who would want it. I don't understand the resistance. If you have 5-6 friends, cool, keep raiding. But sometimes you just need an extra person, or are alone and you need someone to raid with. Maybe have it unlock after you've completed it on hard mode once etc. Let users decide if they want to match up with strangers or not. At least allow the option. I know they've said it'll never happen, but I'd still want to be hopeful that they'd consider it.