Is the album dead?
I’m going to go out on a limb and say ‘no’ to this one, just as I said ‘no’ to the one about the CD being dead. That said, I think we’re going to have to redefine our notion of what constitutes an album.
There is no longer any medium-specific reason for popular songs to be a certain length (3 minutes, give or take for one side of a 78rpm shellac disc) nor for collections of songs to be able to fill two sides of a slab of vinyl (around 22 minutes per side), or for mixes to extend no further than about 80 minutes for a standard (red book) CD.
Digital means the death of scarcity in this regard, so you can have 3 hour songs if you wish, or albums with a million songs on them. I don’t think that necessarily means you should tend to those extremes – though I have to admit I’d get a perverse satisfaction if someone did (which is not a promise to actually listen to the whole thing).
But it does mean that you have the freedom to choose.