Yeah, this is confusing. When the new version of Lightroom comes out, lets call it Lightroom 6, as long as you are still a member of Creative Cloud, you will get Lightroom 6 (and 7, and 8, etc...). Same for Photoshop.
This is basically a Creative Cloud membership that includes Photoshop and Lightroom.
Hope that helps...
Sorry, but this leaves some confusion here.
So far we've been told all CC products cease to work when a subscription stops.
Where does LR, with it's perpetual licence model fit with that ?
Will the copy of LR that is subscribed to cease in the same way ? or will the subscription come with a working serial number for each of the next versions ?
If we get to, say, LR 7 and I decide that I don't need PS CC any more and cancel my subscription will LR7 continue to work in perpetuity and be independently upgradable ?
Sorry to be so pedantic, but these sort of issues matter a lot to the long term value of the offer.