It is not a timed event, there has always been a daily,weekly and nightfall strike. It is a set of rules/tables applied to a strike. Bungie refers to these modes as daily and weekly heroics. They are a different way to play the same content you have already played. Content is the story, the location, the mission, the participants... A strike can exist without heroic rules/rewards. Heroic rules/rewards are not content on their own, they are applied to content to make it more challenging.

It is a timed event. click over to your profile and look at advisors. It will say Weekly Nightfall and it will have a time remaining counter. Just because the event lasts the same time every week doesn't negate the fact that it is an event.

The timer is a reset timer for eligibility for loot and a map change. The nightfall game mode has always existed. It changes content, but it never goes away like Iron Banner or the Queen. You can twist words to make yourself feel better, but I am right.

Doesn't make it a game mode. You are applying you own definition to the activity, it is an Event. It has always been an event. It is timed, simply as that. Just another person grasping at straws thinking that Bungie owes you something.

I think we need to wait and see how Bungie implement the DLC maps into PvP. That will be the telling action. If any game modes become DLC only, then there is no question. Also, any reasoning as to why the payout from Tiger strikes was moved to Roc, which is locked off to non DLC owners? Rendering the best strike playlist available to non dlc owners redundant kind of flies in the face of your point. Theres no reason why content filters cant be put in place to get people onto different nightfall rotations. Unless, of course, they programmed the game in such a way that this wouldnt be possible. And that would be something of a design oversight no?

Most likely like other games. If you don't have the map you get kicked from the lobby.