I hate to spoil the party, but unfortunately... No.
So far everything points to WP8.1 being another catch-up release. Such a catch-up release will have to be extremely good just to add an extra two or three percentage points to WP's market share. If there is nothing else to WP8.1 than what has so far been reported on, it won't move the market share needle sufficiently. So many people have now cosily settled in with iOS or Android, that just appealing to smartphone newcomers isn't enough. It will take a lot of motivation to make people leave the platforms they have become accustomed to and are familiar with. A catch-up release won't provide anywhere close to enough motivation to make people switch. At this point, WP must offer at least one feature that appeals to a very large portion of consumers, which the competition simply can't match. Being faster, more efficient, more stable, or having a cleaner UI are all great things, but they are all too subtle to have a notable affect. Whatever the feature is, it must be "in your face obvious", entirely impossible on iOS and Android, and easily marketable on television. At least for now, I don't see anything like that in WP's future.
I suspect the image of W8 is irreparably damaged. I doubt much will happen on the Windows front either, until W9 comes around in 2015.
Sorry for the downer...