I need a new Macbook Pro, should i wait...

Aug 2, 2007
Long Island N.Y.
I heard that a new model is coming out in possibly the second quarter of 2015, or sooner, but I think it might be mostly speculation. I'd hate to buy a new machine now and then a month or two down the road find out a new model debuted and it has newer hardware... Then again I need a new machine now as mine is way too slow to run Xcode 6 or even Photoshop. Decisions decisions...