Lets have some fun and speculate, yes I did say speculate.
First at what version will Adobe ask for more money.
Second what features do the Lightroom team think should have been included in a finished product that should still be included before we reach the next paid upgrade.
Third what are the team going to leave to outside developers to cover.
My take - Next version will be 1.5 and include bug fixes, soft proofing, bits for the web and slide show modules. Should be free because you cannot adequately print from Lightroom at present.
PKS for Lightroom will be introduced at the same time because with a free upgrade people will spend a bit for a third party app.
Next version will be 2.0 paid for and including lots of things I cannot even dream about because ver 1.5 will have done all I want. Oh I forgot, sqlite will be upgraded to MySql and the program will be available as a Networking version for the Pro's at twice the price.
and England will win the Rugby world, if you don't know what Rugby is never mind.
Frank