I'm talking Long-Term(like 2+ expansions after data has been compiled from flex)
I think it makes sense, they've said it's too difficult to make raids and 5-man's together and there is a market for it. I don't think it's a good strategy to try and make all these different denominations of content, it just divides resources. Honestly I would long-term like to see flex scale to 3-man and maybe eventually have a single player option(really, really long term). A large chunk of the community plays this game exactly like a single player game every day. If Blizzard can develop a system that gives higher rewards for group play and varying levels of difficulty for people to play at in Flex-mode than this could help people enjoy the game at their own pace and eventually getting better(e.g. If you can beat a Normal Mode encounter in single player you are more likely to be capable of beating group content at the same difficulty level)
So many people use LFR as if the other players were all A.I. driven and some use it out of spite and that sucks for the people who are actually looking for people to group and raid with. This of course will always be a problem but letting people play how they want to play seems like a good step in helping build this community up. Honestly it will boil down to gear and how they distribute it, and I do think eventually if this merges with Normal & Heroic Difficulty someone who does Single player Heroic shouldn't be on par with 25-man Heroic Gear.
I think WoW has a bright future and while Blizzard has definitely changed, as all things do, I think they are still aiming for the quality they always have.
What are your thoughts?