These features certainly look like adaptions of what's already been done elsewhere and therefore doable i.e. some music sites have include much of those additional features such as lyrics, videos, photo galleries, event list, gooogley maps, comments streams, social network connections.  Another app (similar example, though less feature-rich) is Bandpage,
 
Bapu: I think the key word in the OP title is "Rich".
 
it's a wait and see, though one thing for sure if this new feature rich becomes a new medium for albums, distributors will have to adapt to allow additional content to be added. Rich, for the rich? Yes, especially if they want to spend millions creating extravagant music videos and a kinda sorta shoot em up gaming interaction experience (initially created in .flv .swf formats) where band members get to blow each other to smithereens. But most often for independent bands (on a low budget) will have to rely on unadulterated ingenuity, ha, it's a Cakewalk walk
 
 

drewfx1
And those who would put value on it are probably a relatively small group of the most dedicated fans, not the larger public.

And we're already speaking of a select few - people buying albums.  The larger public streams, buys single songs or downloads illegally.
 
As far as I'm concerned, extra content is not an incentive, but it can be a cool bonus.
 

Rain

drewfx1
And those who would put value on it are probably a relatively small group of the most dedicated fans, not the larger public.

And we're already speaking of a select few - people buying albums.  The larger public streams, buys single songs or downloads illegally.
 
As far as I'm concerned, extra content is not an incentive, but it can be a cool bonus.
 

I think the hidden agenda for this it to make it near impossible for pirate sites to use because of the shear volume of content included, it will be an addition to streaming.... more info: Article
 
.

The first time I put a rented disc in my blu-ray player I was redirected to distant websites that regaled me with coming attractions of movies I would never want to see and advertisements for stuff I would never buy. Apparently this was a "feature" of the new format that was able to take control of the player and force it to connect to the internet for stuff that only delayed my access to the movie I wanted to see. Luckily I found my player had a setting to prevent this hijacking feature, or I would still be crawling behind the TV to unplug the internet connection every time I wanted to watch something.
 
In ancient times, it was common to put lyrics in the liner notes that fit quite neatly into the CD case, and the attributions of authorship (although often spurious in that they credited the performer instead of the actual songwriter) fit in that simple format as well . That is all I ever wanted to see about the record, or the band. If I never saw another drop of sweat fall from the nose of some rock star, it would be too soon. Learning about his struggles to succeed as confabulated by his publicist, how he studied now dead black blind bluesmen etc. has never been of any use in making bad music better or good music more enjoyable. 
 
The idea that creating all this crap...er I mean additional content, will not take away from the artistic output of the creative artist is ridiculous. Look at the Yoko Ono effect, when music is diverted into ill informed politics or becomes subservient to performance art, there is no improvement in the music, and it diverts the artist more than it rewards the listener.

Drewfx1: Unless the extra content is fairly exclusive somehow and is not already easily available elsewhere, I don't see why anyone would put much value on it.

Good point thanks,  

I have read elsewhere that it's not just exclusive content being part of the strategy. The other point is, a lot of people expect to get music for free (as Rain highlighted well thanks).  A lot of musicians get the art of music down pat ((kudos to that)), but fail terribly in regards to for example, good knowledge of the business side such as, clever concepts, strategies, planning, marketing and PR. Shirley we have heard that ol' cliche; it takes more than great music.  So, unless independent band's adapt (as explained) and do so by providing quality content other than just music AND get up to speed with the business side of the equation, then sadly like most great music will get buried under what is clearly an over-saturated market thanks to the 'oh so easy' convienence of the Internet (I shudder to think how many new music uploads there are per DAY)!!!

For me personally, I have deliberately withheld my music (no new content upload anywhere in quite a while) for several reasons....

1. Need to improve my music content

2. Need to also have high quality and interesting (non-music) content e.g. artwork, photos, graphics, video production and more. (I already have a few plans, but getting all it done takes time and its not easy)!

3. Need to register my own label and assign a good PR manager (already have a person to fill that role). Getting that right has benefits i.e. attaining a bigger slice of the pie (too much to explain here)!

4. Need to get up to speed (learn more) about the music business, it has changed a lot and still evolving, revolving whatever lol. It sure ain't easy.  I love making music (enjoy that immensely) but knowledge of the business side of the equation is no easy walk in the park.  It's no secret, about 70% of major label budgets are poured into concepts, strategies, planning and marketing.  Oh and part of that package involves touring costs. 
 
So, for a lot of independent band's, it is indeed extremely difficult (near impossible) to make a really good sustainable ((liveable) income. Very sad but that's the reality and hits like a ton of bricks. Aww heck, even most actors have taken a pay cut due to losses in DVD (movies) sales i.e. I seen fairly new movies releases sell for less than 5 bucks at {enter big dept store name here), that's hardly enough to pay the light bill. So, musicians are not the only ones that feel the crunch.