I still believe that, based on everything you've written in this thread, you would be better served by buying now.
But if speed and performance is your only concern, and you really need a new laptop, it would probably be OK to buy now.
A lot of you guys have suggested me why dont I buy a rMBP right now so I have decided to go ahead and explain you guys why I dont wanna buy it right now.
Firstly I am not in the U.S and buying a rMBP is a huge investment for me. Unlike in the U.S where if you own a Gadget that too a Apple Product the resale value is pretty good, so one can just buy the current Haswell rMBP now and sell it once the new Broadwell Machines come in the Market and your current Haswell Machine might fetch you some reasonable returns. That is not the case here, So what even if it is Apple, If I were to buy now a Haswell rMBP just to sell it when Broadwell comes, it will fetch me peanuts and mark my words peanuts. Would atleast be a $1500 USD Depreciation for me ! That is F***in Huge !! So whenever I have to buy a rMBP I plan to use it atleast for 4-5 Years a minimum. I cannot (Doesn't work out cost effective in this part of the world) Where There is no real Apple Cult Following !! I cannot just use it now and sell it later, Nope can break you financially.
Second I am not in any real Hurry, I right now use a Windows Machine, which kind of does the job for me, But I wanna sooner or later migrate to the Mac Environment, having said that as of now it is an intention, I am not sitting on a Burning Furnace to do it ASAP !
Third is since I wanna use the rMBP for atleast a period of 4-5 year I wanna buy the most latest Tech Machine available at that point of time, to future proof myself (Again I know one cant) but how much and whatever I can ! To be able to cope with the technological advancements for the coming 4-5 years.
So what makes most important to me in that sense, Having a Bigger Space SSD OR RAM, NO !! what matters to me is, the Battery and GPU Performance ! That would matter/hurt me the most. I know, all of you guys would say even the current Iris Pro rMBP is good enough for a normal, layman use. But Like I said I plan to use the rMBP that I buy for 4-5 years so I would as much as I can, try and buy the...the...most latest, technologically advanced machine available in the Market !! And Having burnt my fingers of having a Sony Vaio Laptop which had a dedicated GPU which failed (Though After 5 Years) and by failing also shot dead my entire machine. I dont wanna buy a Dedicated GPU ever in my life ! Never Ever ! And so I would look to buy a Integrated GPU Machine which is the most latest, most recent. I have had umpteen number of discussion with so called Tech Gurus and Wizrads who have maintained this point, if you want to use your rMBP for 4-5 years as you say, never...never...ever..go for a dedicated GPU Machine !! Period !! You will Thank yourself !! And a lot of Gurus have also told me even right now the Iris Pro IGPU performance in the rMBP has taken the IGPU in rMBP to all new fantastic level ! and the birth of Broadwell will make it one heck of lean, mean F***in Machine It will go there and join a different league in terms of what out of the world Tasks can a IGPU Machine start doing ! Hence even though it is a difficult and very agonizing wait. I am forced to wait. Damn You Intel !

I hate You for making me Wait !!