Thats a very broad question because you have the topics of downloading in its various forms, how artists are influenced by this convenient media and ways in which record companies react are what I'm gaining from your post. Please be less ambigious. I assume that your intent was that downloaded mp3 tracks are detrimental to our enjoyment and pursual of albums. mp3 is a format/codec and has become absorbed into culture as being the generic term for a music track. When people ask me how many mp3's I have on my mp3 player I sometimes feel like saying 'none' because I don't. You may think I'm being anal but its the same thing as calling vacuum cleaners 'hoovers', fizzy drinks 'coke' etc. Assuming only mp3 tracks are being downloaded is wrong because you FLAC, AAC, shorten etc.
I don't think that individually downloaded mp3 tracks have ruined the concept of albums in independent and mainstream spheres. Artists commit themselves to making a full collection not just one song. It seems mandatory to make at least one album which is certainly true from the profilic, even right down to one-hit wonders. I'm not aware of any artist that only releases one track at a time and hasn't made an album of some sort (even then a 'track' could be a 45 min long performance - thats an album in my opinion).
In my experience, the continued perpetuation of mp3 tracks have influenced listening and purchasing patterns of the consumer. Theres a far greater propensity to download a track than to buy the album containing it. Whether most people will decide to buy the album afterwards is speculation at best (they may download it instead). All the people I know who actively download mp3 tracks tend to listen to playlists. Going through their ipods, I rarely see full albums. But even before the advent of downloading music, they usually listened to singles anyway, mp3 tracks have maybe disincentived listening to albums altogether. I listen to albums (and EPs) exclusively.
The interesting pattern amongst my mates and family is the correlation between album listening and music tastes. Me, my brother and some random guys I know have mostly non-mainstream tastes, whereas the rest are interested in mostly mainstream pop and UK/USA rap and r&b. The former group actively purchases CDs whereas the latter tends to frequently download their nectar. For me, the rise of mp3 tracks has made me enjoy and discover more albums due to the knock-on effects on websites and other intermediaries.
In other words, no. Those that always listened to albums will continue to and those that don't will relish in the selective nature of mp3s afforded to them.