Well, I think you have the answer to your question.
It all depends on what you have (or not) already.
Do you already have a GPU(s) that you can use while you wait? Can you play games until Q4 of 2014 when they are rumored to come out?
If you can play games right now, even if at lower settings, just wait for it, as even if you`ll not get a new one for some reason, the prices for the current cards might drop.
If you have no card, and you`re dying to play games, get a 780TI, or R9 290x, depending on what side of the fence you are on regarding GPUs.