I could see the cap being raised in the next 6 months regardless.
Not a chance. I don't see that happening anytime soon. It would be a huge waste of resources if SE even considered raising the cap in the next 6 months. They need to seriously overhaul the 1-49 experience to make it more fun, less grindy, more diverse and dynamic content, etc. Be it quest driven, leve-centric, traditional party camps, quest hubs, company based content, whatever....the road from 1-49 needs one helluva facelift if they want to attract new players to their game (which I'm pretty sure is their goal, to make a product that people actually enjoy playing and want to buy).
After they fix 1-49, they need to add real endgame content @ 50. Whether it's larger scale raids, more instanced dungeons, whatever, there needs to be a real endgame @ 50. There has to be something that encourages and motivates people to press on to 50.
Then, and only then, would I anticipate SE increasing the leveling cap and worrying about content 50+. I'll have to call your post wishful thinking; based on your signature, you are probably itching for something to do beyond grinding jobs to 50. Just because you've been able to tolerate the grind again and again and again doesn't mean it's an enjoyable experience that people are flocking to FFXIV to be a part of.
You've got to read the recent MMORPG.com review of this game (it's linked in another recent thread). The article and all of the comments below said article are a painful truth and insight into public opinion of this game. The game as a whole needs some serious work and you are calling for a level cap increase? I'd venture to say that most of the community here @ ZAM has at least one job @ 50, and we would all love to have some real endgame or some content 50+. But that's selfish. For the greater good / longevity of the game, SE's focus is right where it needs to be: overhauling the games infrastructure, core systems, and gameplay experience from 1-50.
I'm sorry you rushed everything to cap, but you are a very small minority (players with almost everything capped) of a very small minority (people who play FFXIV). I'd genuinely be upset if SE wasted time and resources catering to the super hardcore contingent. At the end of day, there's never enough content and the level cap is never high enough for the hardcore. Maat's cap is a perfect example from FFXI. An insane achievement that no one in their right mind should ever have attained, but plenty of people had it. I'd be embarrassed to admit that I played video games that much.