I know this has been said a million times before, however I believe it to be so true that a million and one seems appropriate.
I understand all games must grow and evolve. I believe that to be some common ground on which we all stand.
However the word evolution can take on a variety of meanings. I think we can all likewise agree that FFXIV isn't going to be taking any gameplay element into a never seen before realm... Thus when we use the word evolve with regards to XIV we are simply referring to "different from XI."
Now we must ask ourselves, what should be different from XI... and at this point no mans opinion is greater than another's for the mere fact that they are nothing more than opinions.
With that said, to my point. If SE decides to "evolve" this game so that it resembles WoW more than XI, I wholeheartedly believe the game will fail or live in the land of perpetual mediocrity at best. Now, if they are smart, they will take the elements of XI we loved, such as the very deep sense of community (mostly due to a large requirement of joining a party) and combine this with a MIX of grinding and questing.... I believe we will have a winner. Now the partying doesn't need to be 6 people like it did in XI, and it also need not require ONLY 1 JOB ... like WTF IS A WMG etc etc.... I believe we all know this was ridiculous. Instead, there should be perhaps several jobs that can easily allow the party to survive a battle. Also, perhaps a nitpick of sorts, but I believe the battles should be of XI difficulty. It was entirely unfulfilling running in circles in XIV fighting mobs for 8 seconds... When something was accomplished in XI, even a small individual battle victory it felt like a true accomplishment. XIV felt like the Final Fantasy Mystic Quest version of some crack-addicted child born of a prostitute hook up between XI and WoW (this isn't a good thing.) I would say 75% XI and 25% WoW elements will get your base back... 75% WoW and 25% XI will have you wondering what went wrong.
At the end of the day, I could ramble for hours... The bottom line is that this game should NOT move to a SOLO dominant single player game masquerading as an MMO. This will end tragically for you and me (I'm looking at you SE.)