I think Haute Couture is just going through a period in which it is struggling to re-define itself. I don't think it is dying. Honestly, I'm a little tired of reading, even seeing (as I don't even bother reading them anymore), these articles about "Couture's Last Breath," etc. Nobody is saying anything new...I've essentially been reading this same article for years.
Looking back at Haute Couture from, say, the early 2000's to about 2006, I feel like it really had an identity. Sure Ready-to-Wear had Nicholas Ghesquiere at Balenciaga, Olivier Theyskens at Rochas and Alexander McQueen, (but in all honesty, I would not even consider their most of their work "Pret-a-Porter"...it IS demi-couture), but Couture still felt innovative at times. To look back on Galliano's collections for Dior circa 2002-2003 is awe-inspiring...they're breathtaking mixes of brash conceptualism and unreal craftsmanship. Those shows were special...and they were different from Pret-a-Porter. I'm not sure I would be able to pinpoint any specific reason as to why, but they just felt different from the RTW.
But now, since Galliano has turned Dior into a tasteless bore-fest, Karl Lagerfeld has lost his mind, and Christian Lacroix is no more, I feel like all of Haute Couture has sunk into a phase of identity crisis. And now with designers like Phoebe Philo at Celine bringing back simplicity to the fashion world, a Couture spectacle no longer seems totally appropriate. Maybe it's a need for new blood? Sure we have Riccardo, and now Thimistier, but the calendar is still largely dominated by men over 50.
I just don't feel like couture will ever die. I just don't. I don't, however, believe it will ever return to it's glory days of the 40's and 50's, either. Too much has changed. But I think it will be a few years before Haute Couture picks up again, at least creatively.