Yes there will be new cards this year, though we don't know exactly when they will be in the shops. The AMD ones have been spotted running demos for some time, so a rumour of June seems reasonable. No-one has talked about seeing an Nvidia demo yet, hopefully they will be on the shelves at the same sort of time but that seems more hopeful atm.
Which games are you hoping to play? What spec monitor do you have? The 970 is a very fast card, you may well be able to get away with much less for now like a 950.
If you don't have a monitor yet, then note that Freesync saves you about £100 over getting an Nvidia Gsync, but that means swapping to an AMD video card.